NEW ZEALAND AND WORLD WAR ONE
ROLL OF HONOUR
O
| 1917Jul25 | 39875 | Private | OAKLEY | Robert | WIR | DOW | France | Son of Robert and Annie Oakley, Sydenham, New Zealand. | FRANCE - TROIS ARBRES CEMETERY, STEENWERCK |
| 1917Oct12 | 2160+ | Private | OATES | William Henry | CIR | KIA | France | Son of Simon and Eliza Ellen Oates, of 217, Norwood St., Beckenham, Christchurch, New Zealand. | BELGIUM - TYNE COT CEMETERY |
| 1918Mar26 | 25295 | Private | OBERG | James Albert | CIR | KIA | France | Son of Jonas and Mary Oberg, of 15, Elmwood Rd., Fendalton, Christchurch | FRANCE - GREVILLERS (NEW ZEALAND) MEMORIAL |
| 1918Nov15 | 11/353 | Trooper | OBERHUBER | Oscar | AMR | Accident | Egypt | Son of John and Emma Oberhuber; husband of Rhoda E. Oberhuber, of Melrose, Misida, Malta. | EGYPT - ISMAILIA WAR MEMORIAL CEMETERY |
| 1917Oct01 | 44143 | Private | O'BOYLE | John | CIR | KIA | France | Son of Mr. and Mrs. J. O'Boyle, of Doyleston, Canterbury, New Zealand. | BELGIUM - TYNE COT CEMETERY |
| 1916Sep15 | 7/2112 | Private | O'BOYLE | John Joseph | CIR | KIA | France | Brother of Miss K. O'Boyle, of Chancery Lane, Christchurch, New Zealand | FRANCE - CATERPILLAR VALLEY CEMETERY, LONGUEVAL |
| 1917Aug20 | 11/1049 | Sergeant | O'BRIAN | Francis Robert | MGS | DOW | Palestine | - | ISRAEL - BEERSHEBA WAR CEMETERY |
| 1915Aug25 | 7/763 | Trooper | O'BRIAN | Harry | CMR | KIA | Gallipoli | Son of Francis and Charlotte O'Brian, of Maxwell Rd., Blenheim | TURKEY - HILL 60 (NEW ZEALAND) MEMORIAL |
| 1917Oct12 | 25/667 | Rifleman | O'BRIEN | Andrew Joseph | NZRB | KIA | France | Son of Jeremiah and Annie O'Brien, of Slope Point, Southland. Native of Waikawa, Invercargill. | BELGIUM - TYNE COT CEMETERY |
| 1918Nov16 | 55257 | Private | O'BRIEN | Charles | Samoan Relief Force | Sec. 2 | - | Son of James and Matilda O'Brien (nee McLean), of 125, Leith St., Dunedin. Served in Samoa | NZ - WELLINGTON (KARORI) CEMETERY |
| 1917Nov01 | 55184 | Driver | O'BRIEN | Charles Wellington | NZMFHomeService | Sec. 3 | NZ | Son of William Henry and Eliza O'Brien (nee Burles); husband of Florence Elma O'Brien, of 54, McLean St., Upper Hutt. Born at Hobart, Tasmania. | NZ - TRENTHAM (ST. JOHN'S ANGLICAN) CEMETERY |
| 1918Jul17??? | 37651 | Sapper | O'BRIEN | Cletus Patrick | NZE | DOD | UK x France | Son of Mrs. Honora O'Brien, of Cape Foulwind, Greymouth, New Zealand. Native of Brighton, Westport, New Zealand | UK - BROCKENHURST (ST. NICHOLAS) CHURCHYARD |
| 1919Mar10 | 7/1501 | Trooper | O'BRIEN | Edward | CMR | DOD | Egypt | - | EGYPT - ISMAILIA WAR MEMORIAL CEMETERY |
| 1918Nov07 | 62621 | Rifleman | O'BRIEN | Francis Trevor Laughlin (Francis Trevor) | NZRB | DOW | France | Son of A. and N. O'Brien, of Putiki Bay, Waiheke Island, Auckland, New Zealand | FRANCE - CAUDRY BRITISH CEMETERY |
| 1915Apr27 | 10/1600 | Private | O'BRIEN | Henry | WIR | KIA | Gallipoli | Son of Fanny Beamish O'Brien, of Standish Hill, New Plymouth, and the late Bart Lloyd O'Brien. Native of Lyttleton, Heathcote, Christchurch | TURKEY - LONE PINE MEMORIAL |
| 1918Aug26 | 34126 | L/Corporal | O'BRIEN | James John | CIR | KIA | France | Son of James and Mary O'Brien, of Kelvin Grove, Palmerston North, New Zealand. Born at Bull's Rangitikei. | FRANCE - GREVILLERS BRITISH CEMETERY |
| 1916Jul08 | 8/943 | Corporal | O'BRIEN | James Lawrence | OIR | KIA | France | Son of Mr. and Mrs. Robert O'Brien, of 224, Litchfield St., Christchurch, New Zealand | FRANCE - CITE BONJEAN MILITARY CEMETERY, ARMENTIERES |
| 1917Oct12 | 41869 | Rifleman | O'BRIEN | James Patrick | NZRB | KIA | France | Brother of Mrs. A. K. Ward, of Pomahaka, Dunedin. | BELGIUM - TYNE COT CEMETERY |
| 1918Aug26 | 56011 | Rifleman | O'BRIEN | Jeremiah | NZRB | KIA | France | Husband of Elizabeth T. O'Brien, of Lyttelton, New Zealand | FRANCE - ACHIET-LE-GRAND COMMUNAL CEMETERY EXTENSION |
| 1917Oct04 | 25573 | Private | O'BRIEN | John | WIR | KIA | France | Son of Mr. and Mrs. Patrick O'Brien, of 406, Eastbourne St., Hastings, Napier. | BELGIUM - TYNE COT CEMETERY |
| 1917Oct12 | 39300 | Private | O'BRIEN | John | OIR | KIA | France | Son of Norah O'Brien, of 359, Cargill Rd., South Dunedin. | BELGIUM - TYNE COT CEMETERY |
| 1918Jan23 | 48419 | Private | O'BRIEN | John | OIR | DOW | France | Son of William and Bridget O'Brien, of Waipori, Otago, New Zealand | BELGIUM - MENIN ROAD SOUTH MILITARY CEMETERY |
| 1918Nov04 | 55114 | Sapper | O'BRIEN | Lawrence John | NZE | KIA | France | Son of L. and M. O'Brien, of Mangaweka, New Zealand. | FRANCE - LE QUESNOY COMMUNAL CEMETERY EXTENSION |
| 1915May01+ | 8/1130 | Private | O'BRIEN | Martin | OIR | KIA | Gallipoli | Son of Mr. and Mrs. J. A. O'Brien, of 33, Ann St., Roslyn, Dunedin | TURKEY - LONE PINE MEMORIAL |
| 1917Jun07 | 10/1937 | Private | O'BRIEN | Michael | WIR | KIA | France | Son of Patrick O'Brien, of Ponsonby, Auckland. | BELGIUM - MESSINES RIDGE (N.Z.) MEMORIAL |
| 1915Aug09 | 8/136 | Private | O'BRIEN | Thomas | OIR | KIA | Gallipoli | Son of Norah O'Brien, of 359, Cargill Rd., Dunedin South, and the late John O'Brien | TURKEY - CHUNUK BAIR (NEW ZEALAND) MEMORIAL |
| 1917Nov26 | 11923 | Corporal | O'BRIEN | Thomas | CIR | KIA | France | Son of Michael and Margaret O'Brien, of "Holmwood," Flinders St., East Maitland, New South Wales, Australia. | BELGIUM - BUTTES NEW BRITISH CEMETERY (N.Z.) MEMORIAL, POLYGON WOOD |
| 1919Sep20 | 4700 | Private | O'BRIEN | Timothy | OtgReg | Not in book | - | - | AUSTRALIA - ROOKWOOD NECROPOLIS, SYDNEY |
| 1918Aug26 | 29846 | Rifleman | O'BRIEN | William | NZRB | KIA | France | Son of Daniel and Mary A. O'Brien, of Dunback, Palmerston South, New Zealand | FRANCE - ACHIET-LE-GRAND COMMUNAL CEMETERY EXTENSION |
| 1918Aug26 | 9/1085 | Bombardier | O'BRIEN | William | NZFA | KIA | France | Son of Mr. and Mrs. Denis O'Brien, of King St., Mosgiel, Dunedin, New Zealand | FRANCE - ADANAC MILITARY CEMETERY, MIRAUMONT |
| 1915Aug11 | 11/694 | Trooper | O'BRIEN | William Thomas | WMR | DOW | Sea x Gallipoli | Son of Mr. and Mrs. Joseph O'Brien, of Hagley Rd., Riccarton, Christchurch | TURKEY - LONE PINE MEMORIAL |
| 1917Oct12 | 53259 | Private | O'BRIEN | William Thomas | OIR | KIA | France | Son of Morgan and Catherine O'Brien, of Makarewa, Southland, Invercargill. Native of Orawai, Southland. | BELGIUM - TYNE COT CEMETERY |
| 1920Apr06 | 51427 | Private | O'BRINE | George | EntBn | DOD | NZ x France | Son of George and Margaret Jane O'Brine (nee Dodd) of Timaru, New Zealand. Born at Wyndham, New Zealand. Served on the Western Front. | NZ - WYNDHAM CEMETERY |
| 1917Jun07 | 14313 | Private | O'BUGLIEN | Edward Raymond | AIR | KIA | France | - | BELGIUM - LA PLUS DOUVE FARM CEMETERY |
| 1915Aug08 | 10/1938 | Private | O'CALLAGHAN | Denis William | WIR | KIA | Gallipoli | Son of Mr. and Mrs. Denis O'Callaghan, of 104, Nursery Rd., Linwood, Christchurch | TURKEY - CHUNUK BAIR (NEW ZEALAND) MEMORIAL |
| 1923Nov12 | 8/2093 | Private | O'CALLAGHAN | John | OtgReg | Sec. 2 | - | - | Not on CWGC (After cut-off) |
| 1917Oct12 | 24291 | Captain | O'CALLAGHAN | Leslie George | CIR | KIA | France | Son of Arthur Pyne O'Callaghan and Florence O'Callaghan, of 16, Craigie St., Timaru; husband of Julia Marie O'Callaghan, of Hadlow, Timaru. Native of The Springs, Lincoln, Canterbury. | BELGIUM - TYNE COT CEMETERY |
| 1915Dec05 | 11/804 | A/Sergeant | O'CALLAGHAN | Patrick | WMR | KIA | Gallipoli | Son of Mary O'Callaghan, of Greytown North, Wairarapa | TURKEY - CHUNUK BAIR (NEW ZEALAND) MEMORIAL |
| 1918Oct11 | 57594 | Trooper | O'CARROLL | Frank | AMR | DOD | Palestine | - | ISRAEL - JERUSALEM WAR CEMETERY |
| 1916Sep16 | 6/1673 | Private | O'CARROLL | John | CIR | KIA | France | Son of Thomas and Ellen O'Carroll, of 69, Sherborne St., St. Albans, Christchurch. Native of Waiau, Amuri. | FRANCE - CATERPILLAR VALLEY (NEW ZEALAND) MEMORIAL |
| 1917Oct13 | 2/291 | Gunner | OCKENDEN | Palmer Elvin | NZFA | KIA | France | Son of Walter and Agnes Ockenden, of Swinburn St., Dannevirke, New Zealand. | BELGIUM - COXYDE MILITARY CEMETERY |
| 1916Jul14 | 8/681 | Private | O'CONNELL | Denis (Denis Ambrose) | OIR | KIA | France | Son of Patrick and Mary Anne O'Connell, of 318, St. Asaph St., Christchurch, New Zealand. A mechanical engineer | FRANCE - Y FARM MILITARY CEMETERY, BOIS-GRENIER |
| 1917Sep29 | 23868 | L/Corporal | O'CONNELL | James | CIR | DOW | France | - | BELGIUM - DOZINGHEM MILITARY CEMETERY |
| 1918Dec05 | 25/1099 | Rifleman | O'CONNELL | James Patrick | NZRB | Sec. 2 | - | Son of Mr. and Mrs. D. D. O'Connell, of Temuka. Born at Leadown, Timaru. Served on the Western Front, 1916-17. | NZ - TEMUKA CEMETERY |
| 1918Aug26 | 51891 | Rifleman | O'CONNELL | John James Patrick | NZRB | KIA | France | - | FRANCE - VAULX HILL CEMETERY |
| 1917Nov29 | 47543 | Private | O'CONNELL | Maurice | CIR | KIA | France | Son of Mrs. A. O'Connell, of Kilbirnie, Wellington, New Zealand. | BELGIUM - TYNE COT CEMETERY |
| 1918Oct16 | 80826 | Private | O'CONNELL | Stanley Kingston | NZInf | DOD | UK | Son of William Kingston O'Connell and Hannah O'Connell, of 18, Broadway Terrace, Wellington | UK - TIDWORTH MILITARY CEMETERY |
| 1919Apr16 | 36510 | Private | O'CONNELL | Thomas | EntBn | DOD | Sea to NZ | Son of Thomas and Margaret O'Connell, of 105, Fitzgerald Avenue, Christchurch. | NZ - CANTERBURY PROVINCIAL MEMORIAL |
| 1918May27 | 23/386 | Corporal | O'CONNELL (CONNELL) | William Moran | NZRB | KIA | France | Son of William Kingsdon Connell, of 18, Broadway Terrace, Wellington, New Zealand | FRANCE - HEBUTERNE MILITARY CEMETERY |
| 1919Apr30 | 11927 | Private | O'CONNOR | Charles | WIR | DOD | NZ | Born at Wellington. | NZ - MARTON (MOUNT VIEW) CEMETERY |
| 1915Aug09 | 11/111 | Trooper | O'CONNOR | Daniel | WMR | KIA | Gallipoli | Son of Bridget O'Connor, of Riverslea Rd., Hastings, Hawke's Bay. Australia | TURKEY - CHUNUK BAIR (NEW ZEALAND) MEMORIAL |
| 1918May02 | 24397 | 2/Lieutenant | O'CONNOR | Daniel | CIR | KIA | France | Son of Maurice and Elizabeth O'Connor, of Hazelburn, Timaru, New Zealand; husband of Jean T. O'Connor, of Epworth, Temuka, New Zealand | FRANCE - SAILLY-AU-BOIS MILITARY CEMETERY |
| 1917Oct12 | 47176 | Rifleman | O'CONNOR | David | NZRB | KIA | France | Son of Daniel and Mary O'Connor (nee Murphy), of Glenseagh, Kiskeam, Banteer, Co. Cork, Ireland. | BELGIUM - TYNE COT CEMETERY |
| 1916Sep29 | 10/3688 | Private | O'CONNOR | George Patrick | WIR | KIA | France | Son of Christina O'Connor, of 201, Victoria St., Wanganui | FRANCE - CATERPILLAR VALLEY (NEW ZEALAND) MEMORIAL |
| 1918Nov09 | 60184 | Private | O'CONNOR | Graham Wakefield | AIR | DOD | UK | Only son of Charles and Ellen Nina O'Connor, of 28, Omahu Rd., Remuera, Auckland. Born at Christchurch. | UK - CODFORD ST. MARY (ST. MARY) NEW CHURCHYARD |
| 1917Jan06 | 24215 | Private | O'CONNOR | Hugh | CIR | DOD | UK x France | Son of Mr. Eugene O'Connor, of 66, College Rd., Timaru, New Zealand. | UK - BROCKENHURST (ST. NICHOLAS) CHURCHYARD |
| 1918Aug29 | 65905 | Private | O'CONNOR | Hugh | AIR | KIA | France | - | FRANCE - BANCOURT BRITISH CEMETERY |
| 1915Aug24 | 6/1675 | Private | O'CONNOR | James | CIR | DOW | Egypt x Gallipoli | Son of Edward and Bridget O'Connor, of Hokitika, New Zealand. | EGYPT - ALEXANDRIA (CHATBY) MILITARY AND WAR MEMORIAL CEMETERY |
| 1917Aug05 | 17097 | Private | O'CONNOR | James | MGC | KIA | France | Son of Mr. J. T. O'Connor, of Freeling St., Island Bay, Wellington New Zealand. | BELGIUM - STRAND MILITARY CEMETERY |
| 1915Jun05 | 6/1676 | Private | O'CONNOR | James Joseph | CIR | KIA | Gallipoli | Son of Michael James and Mary O'Connor, of Seadown, South Canterbury | TURKEY - LONE PINE MEMORIAL |
| 1918Aug06+ | 61149 | L/Corporal | O'CONNOR | Jeremiah | CIR | DOI | France | - | FRANCE - COUIN NEW BRITISH CEMETERY |
| 1916Sep03 | 11517 | Private | O'CONNOR | John | NZInf | DOD | UK | Son of Michael and Cathrine O'Connor, of Myrtle Villa, Takapau, Hawke's Bay, Napier | UK - TIDWORTH MILITARY CEMETERY |
| 1917Mar25 | 12462 | Rifleman | O'CONNOR | John | NZRB | DOW | France | Son of James and Mar Ann O'Connor, of 174, Khyber Pass, Auckland New Zealand; husband of Beatrice Ethe O'Connor. | FRANCE - TROIS ARBRES CEMETERY, STEENWERCK |
| 1921Apr14 | 2/917 | Gunner | O'CONNOR | Joseph | NZFA | Sec. 2 | - | Born at Lyttelton, Heathcote, Christchurch. | NZ - PETONE CATHOLIC CEMETERY |
| 1918Apr20 | 36883 | Rifleman | O'CONNOR | Michael | NZRB | KIA | France | Son of Mrs. C. O'Connor, of John St., Gore, Invercargill, New Zealand | FRANCE - MESNIL COMMUNAL CEMETERY EXTENSION |
| 1918Apr05 | 18582 | 2/Lieutenant | O'CONNOR | Michael Bernard | CIR | KIA | France | Son of Maurice and Elizabeth O'Connor, of County Kerry, Ireland | FRANCE - AUCHONVILLERS MILITARY CEMETERY |
| 1917Jun08 | 29462 | Private | O'CONNOR | Michael Francis | WIR | KIA | France | Son of Daniel and Jane O'Connor, of Te Kowhai, Ngaruawahia, Waikato. | BELGIUM - MESSINES RIDGE (N.Z.) MEMORIAL |
| 1917Jun07 | 24/1154 | Private | O'CONNOR | Michael John | OIR | KIA | France | Son of Mr. and Mrs. James O'Connor, of Dunedin. | BELGIUM - MESSINES RIDGE (N.Z.) MEMORIAL |
| 1917Dec03 | 47285 | Private | O'CONNOR | Paul John | OIR | KIA | France | Son of Michael and Catherine O'Connor, of 13, Kitchener Square, Timaru. Native of Longridge, Otago, New Zealand. | BELGIUM - BUTTES NEW BRITISH CEMETERY (N.Z.) MEMORIAL, POLYGON WOOD |
| 1916Sep15 | 11095 | Rifleman | O'CONNOR | Percy Michael | NZRB | KIA | France | Son of Michael Patrick and Annie Caroline O'Connor, of Orini Rd., Taupiri, Waikato. Native of Kuaotunu, Auckland | FRANCE - CATERPILLAR VALLEY (NEW ZEALAND) MEMORIAL |
| 1915May02 | 8/521 | L/Corporal | O'CONNOR | Peter | OIR | KIA | Gallipoli | Son of Mr. and Mrs. Andrew O'Connor, Otatara, Invercargill | TURKEY - LONE PINE MEMORIAL |
| 1916Jul03 | 10/2261 | Private | O'CONNOR | Richard (Richard Hensleigh) | WIR | KIA | France | Son of Mr. Justice Richard Edward and Sara O'Connor, of Sydney, Australia. Also served at Gallipoli | FRANCE - CITE BONJEAN MILITARY CEMETERY, ARMENTIERES |
| 1916Sep21 | 6/4119 | Private | O'CONNOR | Thomas Arthur | CIR | KIA | France | Son of Mr. and Mrs. P. O'Connor, of Middle Rd., Allenton, Ashburton | FRANCE - CATERPILLAR VALLEY (NEW ZEALAND) MEMORIAL |
| 1918Jul18 | 11/1263 | Sergeant | O'CONNOR | Thomas Bernard | MGC | DOW | France | Son of Mrs. E. Barth, of Wanganui, New Zealand. | FRANCE - BAGNEUX BRITISH CEMETERY, GEZAINCOURT |
| 1917Jul27 | 10/1603 | Corporal | O'CONNOR | Timothy | WIR | KIA | France | Son of Mr. and Mrs. Timothy O'Connor, of Kararnu Farm. Hastings, Napier. | BELGIUM - MESSINES RIDGE (N.Z.) MEMORIAL |
| 1919Nov04 | 36230 | Driver | O'CONNOR | Timothy Edward | NZASC | DOD | NZ | Son of Edward and Sabina O'Connor (nee Glen). Born at Oamaru. Served on the Western Front | NZ - FEATHERSTON CEMETERY |
| 1917Oct13 | 44984 | Rifleman | O'CONNOR | Timothy Joseph | NZRB | DOW | France | Son of Daniel and Hannah Sweeney O'Connor, of Patching St., Ashburton, New Zealand. | BELGIUM - LIJSSENTHOEK MILITARY CEMETERY |
| 1918Sep05 | 56834 | Private | O'CONNOR | William Edward | OIR | KIA | France | Son of Thomas and Mary O'Connor, of Mangawhare, Auckland, New Zealand | FRANCE - RUYAULCOURT MILITARY CEMETERY |
| 1916Nov07 | 33754 | Private | O'CONNOR | William Joseph | NZTU | Sec. 3 | NZ | Son of Mr. and Mrs. W. J. O'Connor, of Appleby, Nelson | NZ - APPLEBY (SS. PETER AND PAUL) CATHOLIC CEMETERY |
| 1917Oct24 | 28777 | Private | O'DEA | Jack Andrew | AIR | DOD | NZ | Son of Mrs. E. O'Dea, of Maria Lane, Catherine St., Onehunga, Auckland. Born at New Plymouth. Served on the Western Front, 1917. | NZ - WAIKARAKA PARK CEMETERY |
| 1917Dec08 | 43604 | Gunner | ODEY | David Alexander | NZFA | KIA | France | Husband of Zella E. Odey, of 18, Bourke St., Palmerston North, Wellington New Zealand. | BELGIUM - DIVISIONAL CEMETERY |
| 1915Jun15 | 8/451 | Private | O'DONNELL | Dennis | OIR | DOW | Egypt x Gallipoli | Son of Timothy and Mary O'Donnell. Born at Southland, New Zealand | EGYPT - CAIRO WAR MEMORIAL CEMETERY |
| 1916Jul11 | 6/3419 | Private | O'DONNELL | Frank Joseph | CIR | KIA | France | Son of John and Julia O'Donnell, of Nelson, New Zealand | FRANCE - CITE BONJEAN MILITARY CEMETERY, ARMENTIERES |
| 1917Jan03 | 26/1018 | Rifleman | O'DONNELL | James | NZRB | DOW | France | - | FRANCE - ESTAIRES COMMUNAL CEMETERY |
| 1918Nov03 | 48063 | T/Sergeant | O'DONNELL | James Nicholas | NZRB | KIA | France | Husband of Kate O'Donnell, of High St., Carterton, New Zealand. | FRANCE - CROSS ROADS CEMETERY, FONTAINE-AU-BOIS |
| 1915Apr25 | 12/203 | Corporal | O'DONNELL | John | AIR | KIA | Gallipoli | Son of William and Katherine Elizabeth O'Donnell, of 67, Grange Rd., Mount Eden, New Zealand | TURKEY - PLUGGE'S PLATEAU CEMETERY, ANZAC |
| 1916Nov02 | 12/3116 | Corporal | O'DONNELL | Joseph | AIR | KIA | France | Husband of J. O'Donnell, of Tariki, New Plymouth. | FRANCE - CITE BONJEAN (NEW ZEALAND) MEMORIAL |
| 1916Jul03 | 12/3117 | Private | O'DONNELL | Patrick | AIR | KIA | France | Son of Michael and Nora O'Donnell, of Tuapeka Flat, Otago, New Zealand | FRANCE - CITE BONJEAN MILITARY CEMETERY, ARMENTIERES |
| 1918Oct20 | 2/3060 | Gunner | O'DONNELL | Patrick Joseph | NZFA | DOD | UK | Son of Edward J. O'Donnell, of Humber St., Oamaru, New Zealand | UK - BROOKWOOD MILITARY CEMETERY |
| 1917Jun08 | 2/1456 | Gunner | O'DONNELL | William Ernest | NZFA | DOW | France | Son of William and Katherine O'Donnell, of Grange Rd., Auckland, New Zealand. Also served at Gallipoli. | FRANCE - BAILLEUL COMMUNAL CEMETERY EXTENSION (NORD) |
| 1915Sep17 | 6/924 | Private | O'DONNELL | William Henry | CIR | DOW | UK x Gallipoli | Son of Michael O'Donnell, of Paroa, Greymouth, New Zealand. | UK - NETLEY MILITARY CEMETERY |
| 1917Oct04 | 16786 | Private | O'DONOGHUE | Daniel | CIR | KIA | France | Son of Mrs. M. O'Donoghue, of 103, Shakespeare Rd., Napier. | BELGIUM - TYNE COT CEMETERY |
| 1918May31 | 13/2468 | Driver | O'DONOGHUE | William James | NZFA | DOD | France | Son of Mrs. M. A. O'Donoghue, of Napier, New Zealand. | FRANCE - BAGNEUX BRITISH CEMETERY, GEZAINCOURT |
| 1916Sep15 | 24/254 | Sergeant | O'DONOHUE | Ernest Joseph | NZRB | KIA | France | Husband of Ellen Ward (formerly O'Donohue), of Christchurch | FRANCE - CATERPILLAR VALLEY (NEW ZEALAND) MEMORIAL |
| 1917Oct12 | 26/1019 | Rifleman | O'DRISCOLL | Cornelius | NZRB | KIA | France | - | BELGIUM - TYNE COT CEMETERY |
| 1918Aug26 | 23603 | Private | O'DRISCOLL | Patrick | OtgReg | Sec. 2 | - | Son of Michael and Jane O'Driscoll (nee Wilson); husband of Alice Beatrice O'Driscoll, of 14, Duncan St., Dunedin. Born at Dunedin. Served on the Western Front, 1916 | NZ - DUNEDIN NORTHERN CEMETERY |
| 1918Dec16 | 61372 | Trooper | O'FEE | Daniel David | CMR | DOD | Gallipoli | Son of Charles and Mary Ann O'Fee, of Crown Terrace, Arrowtown, Invercargill, New Zealand | TURKEY - CHANAK CONSULAR CEMETERY |
| 1917May08 | 19039 | Rifleman | OFFICER | William James | NZRB | KIA | France | Son of William and Betsy Officer, of Gropers Bush, Riverton, Southland, New Zealand. | BELGIUM - ST. QUENTIN CABARET MILITARY CEMETERY |
| 1919Sep23 | 21418 | Sapper | OGDEN | George | NZE | Sec. 2 | - | Husband of Mrs. M. A. Ogden, of Mountain Rd., Mount Albert, Auckland. Served on the Western Front, 1916-17. | NZ - WAIKARAKA PARK CEMETERY |
| 1918May16 | 18696 | Sergeant | OGDEN | Thomas | WIR | KIA | France | Son of the late Thomas and Elizabeth Ogden, of Gisborne, Poverty Bay, New Zealand | FRANCE - SUCRERIE MILITARY CEMETERY, COLINCAMPS |
| 1917Dec22 | 11519 | Private | OGILVIE | Clarence Edwin | OIR | KIA | France | Son of Mr. and Mrs. A. N. Ogilvie, of Droellingup, Western Australia. | BELGIUM - BUTTES NEW BRITISH CEMETERY (N.Z.) MEMORIAL, POLYGON WOOD |
| 1918Aug25 | 33054 | Private | OGILVIE | George Edward | CIR | KIA | France | Son of Jean Ogilvie, of Nelson St., Karoro, Greymouth, New Zealand, and the late William Thomas Ogilvie | FRANCE - BEAULENCOURT BRITISH CEMETERY, LIGNY-THILLOY |
| 1915Apr25 | 12/1482 | Private | OGILVIE | Peter | AIR | KIA | Gallipoli | Son of William and Susan Ogilvie, of Mabel Bush, Southland, Invercargill | TURKEY - LONE PINE MEMORIAL |
| 1916Jun07 | - | Private | OGLE | Alton George | NZTU | Sec. 3 | NZ | Son of Mr. and Mrs. R. G. Ogle, of Mangakura, North Auckland. | NZ - FEATHERSTON CEMETERY |
| 1917Apr02 | 23036 | L/Corporal | OGLETHORPE | Edward Allan | NZRB | DOW | France | Son of Mr. W. A. and Mrs. E. J. Oglethorpe, of "Belgram,'' Allenheyes Rd., Salcombe, Devon, England. Native of Liverpool, England. | FRANCE - HAZEBROUCK COMMUNAL CEMETERY |
| 1918Aug28 | 62706 | Rifleman | O'GORMAN | Cornelius | NZRB | DOW | France | Son of Mr. T. O'Gorman, of Wellington, New Zealand. | FRANCE - BAGNEUX BRITISH CEMETERY, GEZAINCOURT |
| 1917Oct12 | 24274 | Private | O'GORMAN | John | OIR | KIA | France | Son of Thomas and Bridget O'Gorman, of 12, Lewisville Terrace, Tinakori Rd., Wellington. | BELGIUM - TYNE COT CEMETERY |
| 1917Oct04+ | 30396 | Private | O'GORMAN | Thomas | WIR | KIA | France | Son of Thomas and Bridget O'Gorman, of 12, Lewisville Terrace, Tinakori Rd., Wellington. | BELGIUM - TYNE COT CEMETERY |
| 1918Oct23 | 24273 | Private | O'GORMAN | Timothy | OIR | KIA | France | Son of Mr. and Mrs. T. O'Gorman, of Wellington, New Zealand. | FRANCE - ROMERIES COMMUNAL CEMETERY EXTENSION |
| 1918Sep13 | 61748 | Private | O'GRADY | Daniel Francis | WIR | KIA | France | Son of Mrs. E. O'Grady, of Pukekohe, Auckland. | FRANCE - GOUZEAUCOURT NEW BRITISH CEMETERY |
| 1918Oct01 | 63764 | Private | O'GRADY | Ernest William | CIR | DOW | France | Husband of Beatrice Violet O'Grady, of Tipahi St., Nelson, New Zealand | FRANCE - GREVILLERS BRITISH CEMETERY |
| 1915Apr25 | 12/1755 | Private | O'GRADY | John | AIR | KIA | Gallipoli | Son of Mr. and Mrs. Michael O'Grady, of Waihou, Auckland | TURKEY - LONE PINE MEMORIAL |
| 1918Oct08 | 25299 | Sergeant | O'GRADY | Michael Joseph | CIR | KIA | France | Son of Eugene and the late Mary O'Grady, of Auckland, New Zealand | FRANCE - HONNECHY BRITISH CEMETERY |
| 1918Aug24 | 53062 | Private | O'HALLORAN | Augustine | WIR | KIA | France | Son of Mrs. E. St. Ledger, of Wellington, New Zealand. | FRANCE - ADANAC MILITARY CEMETERY, MIRAUMONT |
| 1917Oct12 | 8/3025 | Private | O'HALLORAN | Thomas | OIR | KIA | France | Son of Mr. and Mrs. John O'Halloran, of Lorne, Invercargill, New Zealand. | BELGIUM - POELCAPELLE BRITISH CEMETERY |
| 1917Feb21 | 12/2804 | Private | O'HANLON | William | AIR | KIA | France | Son of James Felix and Theresa O'Hanlon, of Towai, Whangarei, Auckland, New Zealand. Native of New Plymouth, New Zealand. | FRANCE - Y FARM MILITARY CEMETERY, BOIS-GRENIER |
| 1918Nov16 | 89236 | Private | O'HARA | Claude Nelson | NZTU | Sec. 3 | NZ | Husband of L. G. O'Hara, of Putiki, Wanganui | NZ - FEATHERSTON CEMETERY |
| 1921Jan26 | 19040 | Rifleman | O'HARA | Michael James | NZRB | Sec. 2 | - | Son of Michael and Bridget O'Hara (nee Moylan); husband of Beatrice O'Hara, of Ruihi St., Rotorua. Born at Cape Terrace, Kumara West Coast. Served in France. | NZ - ROTORUA PUBLIC CEMETERY |
| 1917Apr11 | 23/1457 | Sergeant | O'HARA | Percy Clarence | NZRB | DOD | France | Son of William R. and Agnes O'Hara, of Wanganui, New Zealand. | FRANCE - BAILLEUL COMMUNAL CEMETERY EXTENSION (NORD) |
| 1917Aug13 | 23421 | Rifleman | O'HARA | Thomas | NZRB | DOW | France | Brother of Patrick O'Hara, of Hamilton, New Zealand. | FRANCE - TROIS ARBRES CEMETERY, STEENWERCK |
| 1917Dec04 | 23/1187 | Rifleman | O'KANE (SLOAN) | Robert Henry | NZRB | KIA | France | (Served as SLOAN). | BELGIUM - POLYGON WOOD CEMETERY |
| 1917Jun27 | 11/1842 | Driver | OKEBY | William George | NZFA | KIA | France | Son of Laurence and Laura Okeby. Native of Reefton, New Zealand. | BELGIUM - STRAND MILITARY CEMETERY |
| 1918Mar30 | 49736 | Private | O'KEEFE | Patrick | AIR | KIA | France | Son of Mrs. E. O'Keefe, of Broadford, County Clare, Ireland. | FRANCE - GREVILLERS (NEW ZEALAND) MEMORIAL |
| 1918Oct08 | 52873 | L/Corporal | O'KEEFE | William | NZRB | KIA | France | Son of Patrick John and Mary O'Keefe, of Railway St., Eltham, Taranaki, New Zealand | FRANCE - ANNEUX BRITISH CEMETERY |
| 1915Apr30 | 10/112 | Private | O'KEEFFE | John | WIR | DOW | Sea x Gallipoli | Son of Mr. and Mrs. Arthur O'Keefe, of 98, Duncan St., Wanganui; husband of Mrs. H. O'Keefe | TURKEY - LONE PINE MEMORIAL |
| 1915Aug11 | 9/68 | Sergeant | O'KEEFFE | Lawrence Cadogan | OMR | DOW | Sea x Gallipoli | Son of Alfred Henry and Jane O'Keeffe, of 52, Normandy St., Musselburgh, Dunedin | TURKEY - LONE PINE MEMORIAL |
| 1918Aug24 | 59043 | Private | O'KEEFFE | Thomas John | OIR | KIA | France | Son of Mr. and Mrs. D. O'Keeffe, of Makarewa, Southland, New Zealand | FRANCE - ACHIET-LE-GRAND COMMUNAL CEMETERY EXTENSION |
| 1915Aug23 | 7/766 | Trooper | O'KEEFFE | Victor Alfred | CMR | DOW | Sea x Gallipoli | Son of Alfred Henry and Jane O'Keeffe, of 52, Normandy St., Musselburgh, Dunedin. Native of Dunedin. | TURKEY - LONE PINE MEMORIAL |
| 1915Aug28 | 7/994 | Trooper | OKELL | Norman | CMR | KIA | Gallipoli | Son of Mrs. Emma Okell, late of Littleton Old Hall, Chester, England | TURKEY - HILL 60 (NEW ZEALAND) MEMORIAL |
| 1916Jun04 | 23/2524 | Private | OKEY | Alfred John | WIR | KIA | France | Father of John W. Okey, of Richmond, Nelson, New Zealand. | FRANCE - CITE BONJEAN MILITARY CEMETERY, ARMENTIERES |
| 1917Oct12 | 27132 | Rifleman | OKEY | Joseph Thomas | NZRB | KIA | France | Son of Jane Okey, of Preston Rd., Greymouth. | BELGIUM - TYNE COT CEMETERY |
| 1916Sep15 | 10/3356 | Private | OKEY | Lionel Gibbons | WIR | KIA | France | Son of Louisa Okey, of Frankley Rd., New Plymouth, and the late Henry Okey. Born at Taranaki | FRANCE - SERRE ROAD CEMETERY No.2 |
| 1918Sep30 | 10/761 | Lieutenant | OKEY | Royden Lydiard | WIR | KIA | France | Son of Frederick William and Elizabeth Annie Okey, of Vogeltown, New Plymouth. Also served on Gallipoli. | FRANCE - VILLERS HILL BRITISH CEMETERY, VILLERS-GUISLAIN |
| 1915Aug08 | 10/737 | Sergeant | OKEY | Sydney Melville | WIR | KIA | Gallipoli | Son of Louisa Okey, of Holdsworthy Rd., Vogeltown New Plymouth, and the late Henry J. H. Okey. Native of Taranaki. | TURKEY - CHUNUK BAIR (NEW ZEALAND) MEMORIAL |
| 1917Jun07 | 20560 | Rifleman | OLD | Charles Robert | NZRB | KIA | France | Son of Robert and Susie Old, of Pukeokahu, Taihape, Wellington. | BELGIUM - MESSINES RIDGE (N.Z.) MEMORIAL |
| 1917Jun07 | 10/3968 | Private | OLD | Edgar | WIR | KIA | France | Son of Charles and Louisa Old, of Inglewood, Taranaki. | BELGIUM - MESSINES RIDGE (N.Z.) MEMORIAL |
| 1918Apr03 | 10/1940 | L/Sergeant | OLD | Harold (Harold Edward) | WIR | DOW | France | Son of William and Emma Jane Old, of Wanganui, New Zealand. Also served at Gallipoli | FRANCE - ETAPLES MILITARY CEMETERY |
| 1917Jun08 | 10/3822 | L/Corporal | OLD | Harry Alexander | WIR | KIA | France | Son of Charles and Louisa Old, of Inglewood, Taranaki. | BELGIUM - MESSINES RIDGE (N.Z.) MEMORIAL |
| 1918Oct12 | 70327 | Private | OLDALE | Henry Edward | AIR | KIA | France | - | FRANCE - ROMERIES COMMUNAL CEMETERY EXTENSION |
| 1917Oct12 | 40715 | Rifleman | OLDFIELD | Frederick William | NZRB | KIA | France | Son of Sarah Oldfield, of Temuka, Timaru, and the late Henry Oldfield. | BELGIUM - TYNE COT CEMETERY |
| 1920Nov10 | 32050 | Private | OLDFIELD | John | AklReg | Sec. 2 | - | Son of Edwin Brightmlre Oldfield and Emma Oldfield (nee Crook), of Belmont, Takapuna. Born at Waiuku. Served on the Western Front | NZ - WAIUKU PUBLIC CEMETERY |
| 1918Sep02 | 30275 | L/Corporal | OLDFIELD | Samuel Alfred | CIR | KIA | France | - | FRANCE - BANCOURT BRITISH CEMETERY |
| 1917Jul23 | 17098 | Private | OLDMAN | Francis Edward | MGC | KIA | France | Son of Victor and Annie Oldman, of Hawarden, Christchurch, New Zealand. | BELGIUM - MUD CORNER CEMETERY |
| 1918Mar27 | 56831 | Rifleman | OLDRIDGE | Thomas Smart Davey | NZRB | KIA | France | - | FRANCE - GREVILLERS (NEW ZEALAND) MEMORIAL |
| 1917Oct12 | 46478 | Rifleman | OLDS | Harold | NZRB | KIA | France | Son of Harold and Mary E. G. Olds, of Little Bargus, Perranwell Station, Cornwall, England. | BELGIUM - TYNE COT CEMETERY |
| 1915Aug18 | 6/114 | Private | OLDS | James | CIR | KIA | Gallipoli | Son of John G. and Mary Ann Olds, of Mussel Bay, Port Chalmers. | TURKEY - CHUNUK BAIR (NEW ZEALAND) MEMORIAL |
| 1918Aug24 | 37479 | Private | O'LEARY | Henry Herbert | CIR | KIA | France | Son of Catherine G. Malley, of 77, Norwich St., Linwood, Christchurch, New Zealand | FRANCE - ACHIET-LE-GRAND COMMUNAL CEMETERY EXTENSION |
| 1918Aug24 | 10/2458 | Private | O'LEARY | Jeremiah Cornelius | WIR | KIA | France | Son of John and Annie O'Leary, of Norsewood, Napier, New Zealand. Also served at Gallipoli and Samoa | FRANCE - ADANAC MILITARY CEMETERY, MIRAUMONT |
| 1916Oct01 | 24/874 | Rifleman | O'LEARY | John William | NZRB | KIA | France | Son of John and Harriet J. O'Leary, of Waitahuna, Otago | FRANCE - CATERPILLAR VALLEY (NEW ZEALAND) MEMORIAL |
| 1916Sep20 | 8/3725 | Corporal | O'LEARY | Leslie Arthur | OIR | DOW | France | Son of Daniel Parsons O'Leary and Ada M. Dickson O'Leary, of Auckland, New Zealand | FRANCE - ETAPLES MILITARY CEMETERY |
| 1921Dec14 | 21724 | Private | O'LEARY | Michael | CantReg | Sec. 2 | - | - | Not on CWGC (After cut-off) |
| 1917Jun14 | 15017 | Private | O'LEARY | Timothy Joseph | CIR | KIA | France | Son of Cornelius and Margaret O'Leary, of 5, Nicholson Terrace, Blenheim, Marlborough. | BELGIUM - MESSINES RIDGE (N.Z.) MEMORIAL |
| 1915Aug08 | 13/537 | Trooper | OLEN | Victor Albert | AMR | KIA | Gallipoli | Son of Edward Germund Olen and Annie Florence Olen, of Taneatua, Bay of Plenty. Native of Blackall, Queensland. Australia. | TURKEY - CHUNUK BAIR (NEW ZEALAND) MEMORIAL |
| 1918Feb02 | 23/864 | Rifleman | OLIFF | William John | NZRB | KIA | France | Son of Henry and Alice Oliff, of Wellington, New Zealand. | BELGIUM - POLYGON WOOD CEMETERY |
| 1916Oct23 | 8/2690 | Private | OLIVE | Melvile Henry Chaloner | OIR | DOW | France | - | FRANCE - ESTAIRES COMMUNAL CEMETERY |
| 1917Nov24 | 8/2458 | Sergeant | OLIVER | Arthur Scott | MGC | KIA | France | Brother of Mr. J. S. Oliver, of Auckland, New Zealand. | BELGIUM - BUTTES NEW BRITISH CEMETERY, POLYGON WOOD |
| 1915Aug15 | 10/2459 | Private | OLIVER | Budge William | WIR | KIA | Gallipoli | Son of William Oliver, of Epuni, Hamlet, Lower Hutt, Wellington. Native of Nelson | TURKEY - CHUNUK BAIR (NEW ZEALAND) MEMORIAL |
| 1916Oct08 | 23234 | Rifleman | OLIVER | David Adam | NZRB | DOW | France | Son of Grace Oliver, of Ashurst, Palmerston North, New Zealand. | FRANCE - ETAPLES MILITARY CEMETERY |
| 1915Aug08 | 10/98 | Private | OLIVER | Edward James | WIR | KIA | Gallipoli | Son of Louisa Ann Oliver, of Otane, Hawke's Bay, and the late George Yates Oliver. Native of Argyll, Hawke's Bay | TURKEY - CHUNUK BAIR (NEW ZEALAND) MEMORIAL |
| 1919Apr25 | 12635 | Trooper | OLIVER | Ernest Bailey | WMR | Accident | Egypt | Son of William Oliver and Hannah Jane Oliver. Born in England. | EGYPT - CAIRO WAR MEMORIAL CEMETERY |
| 1918Nov20 | 13979 | Private | OLIVER | George Reynolds | OtgReg | Sec. 2 | - | Son of G. R. and Minnie Frances Oliver, of Lumsden, Southland. Born at Dipton, Southland. Served on the Western Front, 1916-17. | NZ - WYNDHAM CEMETERY |
| 1916Sep21 | 9/1342 | Private | OLIVER | Hugh (H on CWGC) | CIR | KIA | France | Husband of Isabel Oliver, of 15, Mowbray St., Watlington Rd., Timaru, Canterbury, New Zealand. | FRANCE - LONDON CEMETERY AND EXTENSION, LONGUEVAL |
| 1916Sep15 | 23/1141 | Rifleman | OLIVER | Jesse Robert | NZRB | KIA | France | Son of Mr. G. R. and Minnie Francis Oliver, of Lumsden, Otago, New Zealand | FRANCE - BULLS ROAD CEMETERY, FLERS |
| 1917Jun08 | 11925 | Private | OLIVER | Richard Albert | WIR | KIA | France | Brother of Charles Henry Oliver, of Wanganui | BELGIUM - MESSINES RIDGE (N.Z.) MEMORIAL |
| 1915Aug07 | 8/1816 | Private | OLIVER | Robert | OIR | KIA | Gallipoli | - | TURKEY - CHUNUK BAIR (NEW ZEALAND) MEMORIAL |
| 1915Jun21 | 8/2499 | Private | OLIVER | Robert Henry Weldon | NZTU | Sec. 3 | NZ | Son of Samuel Pasfield Oliver and Clara Georgina Oliver; husband of Kate Oliver (nee Hursthouse), of Manukau, Auckland. | NZ - WELLINGTON (KARORI) CEMETERY |
| 1918Aug29 | 25/1184 | Rifleman | OLIVER | Rodger Joseph | NZRB | KIA | France | Son of Herbert and Emily Oliver, of Hunterville, New Zealand. | FRANCE - L'HOMME MORT BRITISH CEMETERY, ECOUST-ST. MEIN |
| 1916Sep16 | 10/97 | L/Corporal | OLIVER | Thomas | WIR | DOW | France | Son of George Yeats Oliver and Louisa Ann Oliver, of Argyll East, Waipawa, Hawke's Bay. Also served at Gallipoli | FRANCE - CATERPILLAR VALLEY (NEW ZEALAND) MEMORIAL |
| 1918Apr06 | 41010 | Rifleman | OLIVER | Thomas Francis | NZRB | DOW | France | Son of Thomas and Elizabeth Oliver, of Pine Bush, Southland, New Zealand | FRANCE - GEZAINCOURT COMMUNAL CEMETERY EXTENSION |
| 1918Aug29 | 65906 | Rifleman | OLIVER | William Moss | NZRB | KIA | France | - | FRANCE - VAULX HILL CEMETERY |
| 1917Jun24 | 30841 | Private | OLNEY | Arnold Charles | AIR | KIA | France | - | BELGIUM - MUD CORNER CEMETERY |
| 1923Jun12 | 4/1575 | Sapper | O'LOUGHLIN | Charles | NZE | Sec. 2 | - | - | Not on CWGC (After cut-off) |
| 1917May25 | 23037 | Rifleman | OLSEN | Albert James | NZRB | KIA | France | Husband of Ruby Francis Olsen, of 34, Francis Avemle, St. Albans. Christchurch. | BELGIUM - BERKS CEMETERY EXTENSION |
| 1916Sep15 | 26/1021 | Rifleman | OLSEN | Alexander | NZRB | KIA | France | Son of Alexander Olsen and Mathilde Olsen, of Aldershjemmet, Os, Fredrikshald, Norway | FRANCE - CATERPILLAR VALLEY (NEW ZEALAND) MEMORIAL |
| 1918May27 | 2/1073 | Corporal | OLSEN | Alfred William | NZFA | DOW | France | Son of Carl and Emma Olsen, of Inglewood, Taranaki, New Zealand | FRANCE - LOUVENCOURT MILITARY CEMETERY |
| 1923Jun29 | 68549 | Private | OLSEN | Charles | 33rd Reinf | Sec. 2 | - | - | Not on CWGC (After cut-off) |
| 1916Nov15 | 24/1153 | L/Corporal | OLSEN | Edward | NZRB | KIA | France | Son of Mrs. S. Olsen, of Eketahuna, Wellington, New Zealand, and the late A. Olsen | FRANCE - Y FARM MILITARY CEMETERY, BOIS-GRENIER |
| 1915Aug19 | 6/1680 | Corporal | OLSEN | George Hamilton | CIR | KIA | Gallipoli | Son of Mr. and Mrs. John Olsen, of Ashburton, Canterbury | TURKEY - CHUNUK BAIR (NEW ZEALAND) MEMORIAL |
| 1917Feb16 | 25736 | Rifleman | OLSEN | Holger Randolph | NZRB | DOW | France | Son of John F. W. and I. Hedvig E. Olsen, of Hukatere, Kaipara, New Zealand. Native of Denmark. | FRANCE - BAILLEUL COMMUNAL CEMETERY EXTENSION (NORD) |
| 1916Sep19 | 8/4196 | Private | OLSEN | Ingolf Emil | WIR | KIA | France | Son of Mons Olsen and Karen Marie Olsen, of Ekrenbakken 5, Bergen, Norway | FRANCE - CATERPILLAR VALLEY CEMETERY, LONGUEVAL |
| 1915Aug08 | 12/2072 | Private | OLSEN | John Harold | AIR | KIA | Gallipoli | Son of Hans and Jeanette Olsen, of 141, Grey St., Auckland. | TURKEY - CHUNUK BAIR (NEW ZEALAND) MEMORIAL |
| 1917Jun11 | 31427 | Rifleman | OLSEN | John Oscar | NZRB | DOW | France | Brother of James Olsen, of Waihopa, North Auckland, New Zealand. | FRANCE - BAILLEUL COMMUNAL CEMETERY EXTENSION (NORD) |
| 1918Oct08 | 38207 | Rifleman | OLSEN | Kenneth | NZRB | DOW | France | Son of Torkel and Andrea Olsen, of Norsewood, Hawkes Bay | FRANCE - RIBECOURT BRITISH CEMETERY |
| 1917Jul25 | 36355 | Private | OLSEN | Nelson Clyde | CIR | KIA | France | Son of Mr. and Mrs. F. C. J. Olsen, of Lyall Bay, Wellington, New Zealand. | BELGIUM - LONDON RIFLE BRIGADE CEMETERY |
| 1915Aug08 | 13/579 | Trooper | OLSEN | Norman | AMR | KIA | Gallipoli | Son of Mr. and Mrs. O. Olsen, of Pukekohe, Auckland. | TURKEY - CHUNUK BAIR (NEW ZEALAND) MEMORIAL |
| 1918Aug22 | 30276 | Private | OLSEN | Olaf Robert | EntBn | DOD | France | Son of Paul and Karen Olsen, of South Norsewood, Hawkes Bay, New Zealand. Born at Norsewood. | FRANCE - LILLE SOUTHERN CEMETERY |
| 1916Nov18 | 26/1672 | Rifleman | OLSEN | Oliver | NZRB | DOW | France | - | FRANCE - ESTAIRES COMMUNAL CEMETERY |
| 1917Oct04 | 32051 | L/Corporal | OLSEN | Peter William | WIR | KIA | France | Son of Anders Gustaf Olsen and Karin Olsen, of Queen St., Maryborough, Queensland, Australia. Born in Sweden. | BELGIUM - TYNE COT CEMETERY |
| 1917Oct12 | 48258 | Private | OLSEN | Richard Barney | CIR | KIA | France | Son of Mr. and Mrs. O. Olsen, of Hastwells, Eketahuna, Wellington. | BELGIUM - TYNE COT CEMETERY |
| 1918Oct14 | 12/1756 | Sergeant | OLSEN | William Rodgard | NZEF | Not in book | - | Son of Peter and Dorothy Olsen. | SOUTH AFRICA - CAPE TOWN (MAITLAND) CEMETERY |
| 1917Oct04 | 42180 | Private | OLSON | Albert August | WIR | KIA | France | Son of Isaac and Johanna Olson, of Hikurangi, Whangarei, Auckland, New Zealand. | BELGIUM - TYNE COT CEMETERY |
| 1917Oct12 | 41871 | Rifleman | OLSON | Norman Selby | NZRB | KIA | France | Son of Carl Magnus Olson and Ingere Olson, of Masterton. Native of Petone, Wellington. | BELGIUM - TYNE COT CEMETERY |
| 1920Jul02 | 19/205 | Private | OLSON | William | Samoan Relief Force | Sec. 2 | - | Husband of E. Olson, of 73, Bay View Rd., St. Kilda, Dunedin. Born at Invercargill. | NZ - DUNEDIN NORTHERN CEMETERY |
| 1917Jul30 | 4/1832 | Sapper | OLVER | David | EFT | DOW | Palestine | Son of Walter Olver. | EGYPT - KANTARA WAR MEMORIAL CEMETERY |
| 1917Oct26 | 27573 | Private | OMAND | John Wright | OIR | DOW | France | Son of Peter Spence Omand and Susannah Omand, of 9, McMillan St., Roslyn, Dunedin, New Zealand. | BELGIUM - LIJSSENTHOEK MILITARY CEMETERY |
| 1918Mar29 | 23/865 | Rifleman | O'MEARA | James | NZRB | KIA | France | Son of John and Elizabeth O'Meara, of Swanson, New Zealand. | FRANCE - EUSTON ROAD CEMETERY, COLINCAMPS |
| 1916May13 | - | Gunner | O'MEARA | Michael Joseph | NZTU | Sec. 3 | NZ | Son of Mrs. W. O'Meara, of Rangiora. | NZ - RANGIORA EAST CATHOLIC CEMETERY |
| 1916Nov06 | 22674 | Sergeant | O'MEARA | Thomas | NZTU | Sec. 3 | NZ | Son of John and Annie O'Meara (nee Kilkelly), of Drummond, Southland. Born at Limehills | NZ - WINTON CEMETERY |
| 1917Jun11 | 12/3772 | Private | O'MEARA | William John | AIR | DOW | France | Son of John and Elizabeth O'Meara, of Swanson, Kaipara Line, Auckland, New Zealand. | FRANCE - BAILLEUL COMMUNAL CEMETERY EXTENSION (NORD) |
| 1915Apr27 | 10/96 | Sergeant | O'NEALE | Arthur Bolton | WIR | KIA | Gallipoli | Son of Anthony Edward and Louisa O'Neale, of Featherston, New Zealand | TURKEY - ARI BURNU CEMETERY, ANZAC |
| 1917Aug16 | 7/2115 | L/Corporal | O'NEILL | Albert James | CIR | KIA | France | Son of Mr. and Mrs. B. O'Neill, of Christchurch | BELGIUM - MESSINES RIDGE (N.Z.) MEMORIAL |
| 1917Dec20 | 51187 | Private | O'NEILL | Bernard | WIR | KIA | France | - | BELGIUM - BUTTES NEW BRITISH CEMETERY, POLYGON WOOD |
| 1917Oct04 | 12/3118 | L/Corporal | O'NEILL | Henry Arthur | AIR | KIA | France | Son of Charles John and Millicent O'Neill, of Maromaku, Bay of Islands, New Zealand. Native of Waikato, New Zealand. | BELGIUM - TYNE COT CEMETERY |
| 1917Sep29 | 27350 | Private | O'NEILL | Jeremiah Bartholomew (Jeremiah) | CIR | KIA | France | Son of Batt and Mary O'Neill, of Rahalisk, Ballinagree, Macroom, Co. Cork, Ireland. | BELGIUM - NINE ELMS BRITISH CEMETERY |
| 1918Sep20 | 61370 | Private | O'NEILL | John Arthur | AIR | DOW | France | Son of John and Bridget O'Neill, of Nelson St., Gore, New Zealand. | FRANCE - ABBEVILLE COMMUNAL CEMETERY EXTENSION |
| 1916Oct03 | 16/689 | 2/Lieutenant | O'NEILL | John Irvine | Pioneers | KIA | France | Son of John Henry and Hoana O'Neill. | FRANCE - CATERPILLAR VALLEY (NEW ZEALAND) MEMORIAL |
| 1918Nov20 | 92906 | Private | O'NEILL | John Patrick | NZTU | Sec. 3 | NZ | Son of Cornelious and Bridget O'Neill. Born at Hastings, Hawkes Bay | NZ - WELLINGTON (KARORI) CEMETERY |
| 1918May21 | 30449 | Private | O'NEILL | Patrick Thomas | MGC (Res) | DOD | UK | Son of Mrs. Jane O'Neill, of 151, Taranaki St., Wellington, and the late Mr. O Neill | UK - CODFORD ST. MARY (ST. MARY) NEW CHURCHYARD |
| 1917Oct18 | 29681 | Private | O'NEILL | Phillip | AIR | KIA | France | Son of Mr. and Mrs. F. O'Neill, of Glenham, Invercargill, New Zealand. | BELGIUM - NEW IRISH FARM CEMETERY |
| 1915Aug19 | 10/1605 | Private | O'NEILL | Richard | WIR | DOW | Egypt x Gallipoli | Son of John and Sarah O'Neill, of Dromkerry, Faha, Beaufort, Co. Kerry, Ireland. Born at Doonkenane, Beaufort | EGYPT - CAIRO WAR MEMORIAL CEMETERY |
| 1918Apr05 | 29065 | Private | O'NEILL | Thomas | CIR | KIA | France | Son of Edward and Mary O'Neill, of 57, Macandrew Rd., South Dunedin, New Zealand | FRANCE - SERRE ROAD CEMETERY No.1 |
| 1918Nov02 | 84750 | Private | ONEROA | Tiki Whautapu | NZTU | Sec. 3 | NZ | Son of Tamati Oneroa. Born at Otorohanga. | NZ - DEVONPORT (O'NEILL'S POINT) CEMETERY |
| 1918Aug27 | 33169 | 2/Lieutenant | ONGLEY | Patrick Augustine | OIR | KIA | France | - | FRANCE - MORY ABBEY MILITARY CEMETERY, MORY |
| 1915Apr25 | 12/819 | Private | ONION | David Gordon | AIR | KIA | Gallipoli | Son of Mr. and Mrs. John Onion, of Cambridge, Hamilton | TURKEY - LONE PINE MEMORIAL |
| 1918Apr05 | 40837 | Private | ORANGE | Raymond Lionel | CIR | KIA | France | Son of Albert Edward and Helena B. Orange; husband of Lilian L. Orange, of 32, Esplanade, Sumner, Christchurch, New Zealand | FRANCE - AUCHONVILLERS MILITARY CEMETERY |
| 1918Mar26+ | 21316 | Private | ORCHARD | Charles James | AIR | KIA | France | Son of James Orchard and Ellen Jillard Vodden Orchard | FRANCE - GREVILLERS (NEW ZEALAND) MEMORIAL |
| 1916Sep20 | 25/452 | Rifleman | ORCHARD | Clarence Leonard | NZRB | DOW | France | Son of George H. and Laura Orchard, of 1213, Nelson St., Hastings, Hawkes Bay, New Zealand | FRANCE - ST. SEVER CEMETERY, ROUEN |
| 1918Oct24 | 54254 | Private | ORCHARD | Frank Henry | OIR | KIA | France | Husband of Camellia Orchard, of Pukahu, Hastings, Hawkes Bay, New Zealand | FRANCE - CROSS ROADS CEMETERY, FONTAINE-AU-BOIS |
| 1918Nov16 | 90540 | Private | ORCHISTON | Gordon Juro | NZTU | Sec. 3 | NZ | Son of Joseph and Annie Orchiston; husband of Magdalena Jane Orchiston, of Commerce St., Whakatane. Born in Auckland. | NZ - FEATHERSTON CEMETERY |
| 1916Sep16 | 10/3692 | Sergeant | ORDISH | Alfred William | WIR | KIA | France | Son of James Alexander and Elizabeth Amy Ordish, of Dalefield, Carterton, Wairarapa, Wellington | FRANCE - SERRE ROAD CEMETERY No.2 |
| 1915Aug07 | 6/1219 | Private | O'REILLY | Edmond | CIR | KIA | Gallipoli | Son of Mr. and Mrs. Michael O'Reilly, of Albury, South Canterbury | TURKEY - CHUNUK BAIR (NEW ZEALAND) MEMORIAL |
| 1917Jul23 | 10/3045 | Private | O'REILLY | Francis Chitty | WIR | KIA | France | Son of the late Francis P. and Alice O'Reilly. | BELGIUM - UNDERHILL FARM CEMETERY |
| 1917Aug11 | 28910 | L/Corporal | O'REILLY | John | OIR | KIA | France | Son of Michael and Mary Ann O'Reilly, of Albury, New Zealand | BELGIUM - PROWSE POINT MILITARY CEMETERY |
| 1917Dec09 | 22507 | Private | O'REILLY | Michael | WIR | DOW | France | - | FRANCE - LONGUENESSE (ST. OMER) SOUVENIR CEMETERY |
| 1917Oct20 | 35369 | Gunner | O'REILLY | Thomas | NZFA | KIA | France | Son of Edward and Anna Shiel O'Reilly, of Ruskey, Dromod, Co. Leitrim, Ireland. | BELGIUM - DIVISIONAL CEMETERY |
| 1918Nov07 | 80173 | Rifleman | ORMANDY | Harry James | NZRB (Res) | DOD | UK | Son of Mr. and Mrs. Ormandy, of 517, Tuam St., East Linwood, Christchurch, New Zealand | UK - CANNOCK CHASE WAR CEMETERY |
| 1915May08 | 6/1060 | Private | ORME | Walter | CIR | KIA | Gallipoli | Son of Mr. and Mrs. John Orme, of St. Albans, Christchurch | TURKEY - TWELVE TREE COPSE (NEW ZEALAND) MEMORIAL |
| 1916Sep16 | 8/2094 | Private | ORMROD | Ernest | OIR | KIA | France | Son of Edwin and Emily Ormrod, of 35, Broughton St., South Dunedin. Native of Pendlebury, Lancs., England. Also served at Gallipoli | FRANCE - CATERPILLAR VALLEY (NEW ZEALAND) MEMORIAL |
| 1916Sep15 | 23/248 | L/Corporal | ORMSBY | Walter George | NZRB | KIA | France | Son of George and Christine Ormsby, of Patea, Taranaki, New Zealand. Native of Greymouth, New Zealand Also served in Egypt | FRANCE - BULLS ROAD CEMETERY, FLERS |
| 1917Dec06 | 46776 | Private | O'ROURKE | Patrick | OIR | DOW | France | Son of M. O'Rourke, of Gore, New Zealand. | BELGIUM - LIJSSENTHOEK MILITARY CEMETERY |
| 1917Oct12 | 9/1343 | Private | O'ROURKE | Stephen William | OIR | KIA | France | Son of Mr. and Mrs. Michael O'Rourke, of Gore, Southland, Invercargill. | BELGIUM - TYNE COT CEMETERY |
| 1917Jun07 | 14314 | Rifleman | ORR | Ernest | NZRB | KIA | France | Son of John William and Elizabeth A. Orr, of Kaitangiweka, Taumarunui, Hamilton. | BELGIUM - MESSINES RIDGE (N.Z.) MEMORIAL |
| 1918Aug28 | 24/1769 | Private | ORR | George | AIR | KIA | France | Son of James Orr, of Gordon, Te Aroha, New Zealand | FRANCE - GREVILLERS BRITISH CEMETERY |
| 1918Sep04 | 76193 | Private | ORR | Gordon Hugh | NZInf | DOD | Sea to UK | Husband of Emma Annie Orr, of Greymouth. | NZ - CANTERBURY PROVINCIAL MEMORIAL |
| 1917Jun08 | 23/1143 | L/Corporal | ORR | Henry William | NZRB | KIA | France | Son of John William and Elizabeth A. Orr, of Kaitangiweka, Taumarunui, Hamilton. | BELGIUM - MESSINES RIDGE (N.Z.) MEMORIAL |
| 1917Jul29 | 38062 | Private | ORR | James | WIR | KIA | France | Brother of Mrs. W. Barker, of Mangatoro, Dannevirke, Napier. | BELGIUM - MESSINES RIDGE (N.Z.) MEMORIAL |
| 1915Aug16 | 7/555 | Trooper | ORR | James Jarvie | CMR | KIA | Gallipoli | Son of W. J. Orr, of New Zealand | TURKEY - 7th FIELD AMBULANCE CEMETERY |
| 1917Oct04 | 26966 | Private | ORR | John William | AIR | KIA | France | Son of Matilda Orr, of Main Rd., Maheno, Oamaru, and the late John Orr. | BELGIUM - TYNE COT CEMETERY |
| 1917Oct12 | 25298 | Private | ORR | Leslie | OIR | KIA | France | Son of Mr. and Mrs. Archibald Orr, of 1728, Davie St., Victoria, British Columbia, Canada. | BELGIUM - TYNE COT CEMETERY |
| 1917Feb21 | 26967 | Private | ORR | Robert Charles | AIR | KIA | France | Son of John and Matilda Orr, of Main Rd., Maheno, New Zealand. Born at Maheno. | FRANCE - PONT-DU-HEM MILITARY CEMETERY, LA GORGUE |
| 1918Oct06 | 23/867 | Rifleman | ORSBORN | Jesse | NZRB | KIA | France | Son of Mrs. Jane Orsborn, of Nairn St., Wellington, New Zealand. | FRANCE - FLESQUIERES HILL BRITISH CEMETERY |
| 1918Nov10 | 85751 | Private | ORSBOURN | Robert John | NZTU | Sec. 3 | NZ | Son of Mrs. J. Orsbourn, of Glenroy, Christchurch | NZ - FEATHERSTON CEMETERY |
| 1915Aug09 | 6/2237 | Private | ORTON | Lewis | CIR | DOW | Gallipoli | Son of Thomas and Elizabeth Orton, of Coton Lawn, Arbury, Nuneaton, England. Native of Atherstone, England. | TURKEY - EMBARKATION PIER CEMETERY |
| 1918Jan10 | 43898 | Gunner | OSBORN | Clarence | NZFA | KIA | France | Son of Mr. and Mrs. Alexander Osborn, of 51, Wickliffe Terrace, Port Chalmers, Dunedin, New Zealand | BELGIUM - BUTTES NEW BRITISH CEMETERY (N.Z.) MEMORIAL, POLYGON WOOD |
| 1916Sep17 | 3/2029 | Private | OSBORN | Travis Anderson | NZMC | DOW | France | Son of Thomas Lester Osborn and Alice Margreta Osborn, of 122, Rose St., Spreydon, Christchurch, New Zealand | FRANCE - FLATIRON COPSE CEMETERY, MAMETZ |
| 1917Aug04 | 13219 | Gunner | OSBORN | Vere Anderson | NZFA | KIA | France | Son of Thomas Lester Osborn and Alice Margaret Osborn, of 122, Rose St., Spreydon, Christchurch, New Zealand. | BELGIUM - COXYDE MILITARY CEMETERY |
| 1916Jul13+ | 8/2095 | Private | OSBORN | William | OIR | KIA | France | - | FRANCE - CITE BONJEAN (NEW ZEALAND) MEMORIAL |
| 1917Oct12 | 24046 | Private | OSBORNE | Cecil (Cecil Russell) | AIR | DOW | France | Son of Alfred John and Fannie Osborne, of Tryphena, Gt. Barrier Island, New Zealand. | BELGIUM - NINE ELMS BRITISH CEMETERY |
| 1917Oct04 | 42174 | Private | OSBORNE | Charles Patrick | WIR | KIA | France | Son of Thomas and Cathrine Osborne, of Newstead, Hamilton, New Zealand. Native of Forest Gate, London, England. | BELGIUM - TYNE COT CEMETERY |
| 1915Jul15 | 12/208 | Private | OSBORNE | Charles William | AIR | DOD | Mudros x Gallipoli | Son of Mrs. M. Osborne, of Te Awamutu, New Zealand. | GREECE - EAST MUDROS MILITARY CEMETERY |
| 1917Oct04 | 12/2427 | Private | OSBORNE | John | AIR | KIA | France | Son of Mr. and Mrs. G. E. Osborne, of Hinuera, Waikato. | BELGIUM - TYNE COT CEMETERY |
| 1917Oct22 | 42383 | Private | OSBORNE | Richard Bert | AIR | KIA | France | Husband of Mrs. R. B. Osborne, of Glenfield Rd., Birkenhead, Auckland, New Zealand. | BELGIUM - TYNE COT CEMETERY |
| 1917Nov14 | 11/245 | Sergeant | OSBORNE | Robert | WMR | KIA | Palestine | - | ISRAEL - RAMLEH WAR CEMETERY |
| 1917Aug03 | 6/3821 | Private | OSBORNE | Samuel Kingsbury | CIR | KIA | France | Son of John and Sarah Ann Osborne, of Willowby, Ashburton, New Zealand. | BELGIUM - MAPLE LEAF CEMETERY |
| 1916Oct01 | 7/2116 | Corporal | O'SHAUGHNESSY | Bernard Joseph | CIR | KIA | France | Son of William and Jane Theresa O'shaughnessy, of Ellesmere, Canterbury, New Zealand. Born at Christchurch, New Zealand | FRANCE - CATERPILLAR VALLEY CEMETERY, LONGUEVAL |
| 1917Aug16 | 36882 | Private | O'SHAUGHNESSY | Patrick | OIR | KIA | France | Son of Mr. J. O'shaughnessy, of Ballylin East, Cranghwell, Co. Galway, Ireland. | BELGIUM - MOTOR CAR CORNER CEMETERY |
| 1917Mar15 | 6/3122 | Private | O'SHEA | Cornelius (C on CWGC) | CIR | KIA | France | - | BELGIUM - ST. QUENTIN CABARET MILITARY CEMETERY |
| 1916Sep21 | 6/2719 | Private | O'SHEA | Daniel | CIR | DOW | France | Born at Temuka, New Zealand. Son of Patrick O'shea, of Timaru, New Zealand. Also served at Gallipoli | FRANCE - ST. SEVER CEMETERY, ROUEN |
| 1916Jan11 | 10/95 | Private | O'SHEA | George Augustus | WIR | DOD | Egypt | Son of Thomas and Mary O'shea. Born at Wakefield, Nelson | EGYPT - CAIRO WAR MEMORIAL CEMETERY |
| 1918Oct23 | 72579 | Private | O'SHEA | James Michael | WIR | DOD | France | Son of Mrs. M. F. O'shea, of 71, Hopper St., Wellington, New Zealand | FRANCE - ETAPLES MILITARY CEMETERY |
| 1918Oct08 | 67897 | Rifleman | OSMAND | George John | NZRB | KIA | France | Son of John and Mary Ann Osmand, of Bayfield Rd Anderson's Bay, Dunedin, New Zealand; husband of Lily Treadwell (formerly Osmand), of 7, Rees St., Christchurch, New Zealand. | FRANCE - ANNEUX BRITISH CEMETERY |
| 1918Sep05 | 63032 | Private | O'SULLIVAN | Arthur Joseph | OIR | KIA | France | Son of John and Mary O'Sullivan, of Christchurch; husband of Alice Shaw (formerly O'Sullivan), of 114, Lytelton St., Spreydon, Christchurch, New Zealand | FRANCE - RUYAULCOURT MILITARY CEMETERY |
| 1919Mar01 | 6/4638 | Private | O'SULLIVAN | Edward | CIR | DOD | NZ | Son of Michael and Mary O'sullivan (nee Ford). Born at Masterton, Wairarapa. Served on the Western Front and with the Army of Occupation. | NZ - WELLINGTON (KARORI) CEMETERY |
| 1916Sep30 | 12/2807 | Private | O'SULLIVAN | Edward Mortimer | AIR | KIA | France | Son of Mortimer and Catherine O'Sullivan, of "Rosedale," 2, Gladstone Rd., Mount Albert, Auckland, and the late Mortimer O'Sullivan | FRANCE - CATERPILLAR VALLEY (NEW ZEALAND) MEMORIAL |
| 1918Aug27 | 54583 | Rifleman | O'SULLIVAN | John Charles | NZRB | DOW | France | Son of John and Julia O'Sullivan, of Dannevirke, Napier, New Zealand | FRANCE - BAGNEUX BRITISH CEMETERY, GEZAINCOURT |
| 1915Sep02 | 13/936 | Trooper | O'SULLIVAN | John Dominic | AMR | DOW | Sea x Gallipoli | Son of John and Margaret O'sullivan, of Aria, Te Kuiti, Hamilton. | TURKEY - LONE PINE MEMORIAL |
| 1918Aug24 | 40752 | 2/Lieutenant | O'SULLIVAN | Leo Desmond | WIR | DOW | France | Son of Major J. and Mrs. O'sullivan, of 8, McFarlane St., Wellington, New Zealand | FRANCE - BAGNEUX BRITISH CEMETERY, GEZAINCOURT |
| 1918Apr05 | 55616 | Rifleman | O'SULLIVAN | Patrick (P on CWGC) | NZRB | DOW | France | - | FRANCE - GEZAINCOURT COMMUNAL CEMETERY EXTENSION |
| 1918Oct06 | 10531 | Driver | OTLEY | William Charles Edward | NZFA | DOW | France | Son of Charles Edward Otley, of 387, Madras St., Christchurch, New Zealand | FRANCE - THILLOY ROAD CEMETERY, BEAULENCOURT |
| 1918Oct10 | 62879 | Private | OTT | Charles George | MGC | DOW | France | Son of the late Charles George Ott, of St. Albans, Christchurch, New Zealand | FRANCE - BEAULENCOURT BRITISH CEMETERY, LIGNY-THILLOY |
| 1917Jan09 | 11/2351 | Trooper | OTTAWAY | William Alfred | WMR | KIA | Egypt | Son of William Alfred and Kate Ottaway, of Sussex, England. | EGYPT - KANTARA WAR MEMORIAL CEMETERY |
| 1915Aug28 | 13/720 | Sergeant | OTTER | George William Whyte | AMR | KIA | Gallipoli | - | TURKEY - HILL 60 CEMETERY |
| 1916Sep25 | 10/3048 | L/Corporal | OTTO | Norman Charles | WIR | KIA | France | Son of Charles and Jessie Marie Otto, of "Seddon House," Ongarue, Hamilton. Native of Thames | FRANCE - CATERPILLAR VALLEY (NEW ZEALAND) MEMORIAL |
| 1916Sep27 | 8/3030 | Private | OTTREY | John Thomas | OIR | KIA | France | Son of Mr. and Mrs. J. R. Ottrey, of Harrow, Victoria, Australia. | FRANCE - CATERPILLAR VALLEY (NEW ZEALAND) MEMORIAL |
| 1916Sep29 | 10251 | Private | OVENS | John | Pioneers | KIA | France | Son of John and Martha Ovens, of Foulden, Berwickshire, Scotland; husband of Eva Ovens, of Dannevirke, Hawkes Bay, New Zealand | FRANCE - CATERPILLAR VALLEY CEMETERY, LONGUEVAL |
| 1917Oct29 | 40358 | Private | OVER | Charles Frederick | NZInf | DOD | UK | Son of E. M. Over, of Onehunga, Auckland, and the late William Over. | UK - TIDWORTH MILITARY CEMETERY |
| 1917Nov22 | 27353 | Private | OVEREND | William Arthur | CIR | KIA | France | Son of Henry and Eliza Overend, of 55, Barnsley Rd., South Elmsall, Pontefract, Yorks. Native of Merthyr Tydfil, South Wales | BELGIUM - BUTTES NEW BRITISH CEMETERY, POLYGON WOOD |
| 1916Jun09 | 24/1767 | Private | OVEREND | William Thomas | WIR | DOW | France | Son of Mr. and Mrs. W. H. Overend, of 303, Market St., Hastings, New Zealand | FRANCE - CITE BONJEAN MILITARY CEMETERY, ARMENTIERES |
| 1915Jun01 | 11/112 | Sergeant | OVERTON | Frederick William Ellesmere | WMR | KIA | Gallipoli | Son of Frederick and Marianne Overton, of Fokorangi, Halcombe, New Zealand | TURKEY - ARI BURNU CEMETERY, ANZAC |
| 1915Aug10 | 7/384 | L/Corporal | OVERTON | Guy Stanley | CMR | DOW | Sea x Gallipoli | Son of Charles Overton, of 24, Hereford St., Christchurch, and the late Sophie Overton | TURKEY - LONE PINE MEMORIAL |
| 1918Sep27 | 2/1329 | 2/Lieutenant | OVERTON | Henry Isle | NZFA | DOW | France | Son of John Henry and Annie Ellen Overton. Born in London. | FRANCE - LEBUCQUIERE COMMUNAL CEMETERY EXTENSION |
| 1915Aug07 | 7/506 | Major | OVERTON | Percy John | CMR | KIA | Gallipoli | Husband of Hilda Margaret Overton, of Greta, Christchurch, New Zealand | TURKEY - 7th FIELD AMBULANCE CEMETERY |
| 1918Jan07 | 30398 | Rifleman | OWEN | Arthur | NZRB | KIA | France | Son of Mrs. K. Owen, of Devon St., New Plymouth, New Zealand | BELGIUM - HOOGE CRATER CEMETERY |
| 1920Nov18 | 3/3170 | Captain | OWEN | Harold Edward | NZMC | Sec. 2 | - | Son of Thomas Edward and Eliza Ann Owen; husband of Charlotte Ann Owen (nee Faulkner), of 117, Main Rd., Rona Bay, Eastbourne, Lower Hutt. Born in Devonshire, England. | NZ - WELLINGTON (KARORI) CEMETERY |
| 1917Oct18 | 35348 | Gunner | OWEN | Henry James | NZFA | KIA | France | Son of Mrs. A. E. Owen, of 5, Douglas St., Palmerston North. New Zealand. | BELGIUM - WHITE HOUSE CEMETERY |
| 1917Aug08 | 6/318 | L/Sergeant | OWEN | Hugh Frederick | CIR | DOW | France | Son of Hugh and Elizabeth Owen, of New Zealand. | FRANCE - PONT-D'ACHELLES MILITARY CEMETERY, NIEPPE |
| 1917Dec09 | 51494 | Rifleman | OWEN | John | NZRB | DOW | France | Son of Andrin and Jean Owen, of 33, Gairbraid Avenue, Maryhill, Glasgow, Scotland. | BELGIUM - LIJSSENTHOEK MILITARY CEMETERY |
| 1918Apr05 | 12/3119 | Private | OWEN | John | AIR | KIA | France | Son of John and Anne Owen, of "Norwood," 54, Gt. South Rd., Remuera, Auckland, New Zealand | FRANCE - BERTRANCOURT MILITARY CEMETERY |
| 1916Oct07 | 2/336 | Gunner | OWEN | Leonard William | NZFA | DOW | France | Son of William Green Owen and Mary Owen, of Church St., Northcote, Auckland, New Zealand | FRANCE - ETAPLES MILITARY CEMETERY |
| 1918Sep15 | 78739 | Private | OWEN | Percival Charles | NZInf | DOD | UK | Son of Charles and Mary Owen, of Chiltern, Victoria, Australia | UK - PLYMOUTH (EFFORD) CEMETERY |
| 1918Mar29 | 14853 | Rifleman | OWEN | William (William Joseph) | NZRB | KIA | France | Son of Susan Halpin (formerly Owen), of Gisborne, New Zealand, and the late William Joseph Owen | FRANCE - EUSTON ROAD CEMETERY, COLINCAMPS |
| 1917Jun21 | 29586 | Rifleman | OWENS | Alexander | NZRB | KIA | France | Son of David and Jessie Owens, of Bush Rd., Mosgiel, Otago, New Zealand. | BELGIUM - STRAND MILITARY CEMETERY |
| 1915May08 | 8/942 | Private | OWENS | John Denis Hargreaves | OIR | KIA | Gallipoli | Son of John and Emma Owens, of 19, Gordon Place, Kensington, London, England | TURKEY - TWELVE TREE COPSE (NEW ZEALAND) MEMORIAL |
| 1915Aug08 | 10/1944 | Private | OWENS | Peter Joseph | WIR | KIA | Gallipoli | Son of Mrs. James Owens, of "Glenown," Baker's Swamp, Dripstone, New South Wales | TURKEY - CHUNUK BAIR (NEW ZEALAND) MEMORIAL |
| 1917Oct04 | 21318 | Private | OWENS | Samuel James | AIR | KIA | France | Son of the late James and Maria Owens, of 54, Williamson Avenue, Grey Lynn, Auckland; husband of Ethel May Owens, of 8, Bowling Avenue, Epsom, Auckland, New Zealand. Native of Thames, New Zealand. | BELGIUM - TYNE COT CEMETERY |
| 1917Oct14 | 23/545 | Sergeant | OXENBRIDGE | Edmund William | NZRB | DOW | France | Son of Edmund and Margaret Oxenbridge, of Queenstown, New Zealand. | BELGIUM - NINE ELMS BRITISH CEMETERY |
| 1917Nov14 | 13/2235 | Trooper | OXENHAM | Frederick George | AMR | KIA | Palestine | Son of Mr. H. G. and Mrs. C. Oxenham. Born at Auckland, New Zealand. | ISRAEL - RAMLEH WAR CEMETERY |
| 1918Oct05 | 62376 | Private | OXLEY | Hubert Kirtley | CIR | KIA | France | Son of Robert and Selina Eliza Oxley, of Whitianga, Auckland. Born in Napier | FRANCE - GREVILLERS (NEW ZEALAND) MEMORIAL |
| 1916Sep30 | 12/2430 | Corporal | OXLEY | Peter Aramac | AIR | KIA | France | Son of Mrs. F. E. H. Oxley, of North Queensland, Australia. | FRANCE - CATERPILLAR VALLEY (NEW ZEALAND) MEMORIAL |
| 1915Aug08 | 10/461 | Private | OXLEY | Thomas | WIR | KIA | Gallipoli | Son of John and Annie Oxley, of Colebrook, Tasmania. | TURKEY - CHUNUK BAIR (NEW ZEALAND) MEMORIAL |
| 1917Oct12 | 29849 | Private | OXLEY | William Frank | OIR | KIA | France | Son of William and Mary Oxley, of 28, James St., North East Valley, Dunedin, New Zealand. Native of Birmingham, England. | BELGIUM - TYNE COT CEMETERY |
| 1917Oct12 | 44146 | Private | OXNAM | John Thomas | CIR | KIA | France | Son of Mr. and Mrs. J. Oxnam, of Longford, Murchison, Nelson, New Zealand. | BELGIUM - TYNE COT CEMETERY |
FAMILIES I AM RESEARCHING | MISCELLANEOUS GENEALOGICAL STUFF | NEW ZEALAND — ON LINE GENEALOGICAL AND FAMILY HISTORY RESOURCES | NEW ZEALAND — YOUNG BOY IMMIGRANT SCHEME 1911 — 1914 | NEW ZEALAND DISASTERS AND TRAGEDIES | NEW ZEALAND MISCELLANEOUS GENEALOGICAL INDEXES | NEW ZEALAND LAND WARS — MISCELLANEOUS GENEALOGICAL INDEXES | NEW ZEALAND AND WORLD WAR ONE | NEW ZEALAND AND WORLD WAR TWO | NEW ZEALAND ROLLS OF HONOUR AND WAR MEMORIALS — BY LOCATION | NEW ZEALAND ROLLS OF HONOUR AND WAR MEMORIALS — BY CONFLICT | NEW ZEALAND ROLLS OF HONOUR — MILITARY NURSES | PAKEHA/MAORI TRANSLITERATIONS | PASSENGER LISTS TO NEW ZEALAND | SHAND — FAMILY HISTORY | SOUTH TARANAKI, NEW ZEALAND — GENEALOGICAL RESOURCES | SPONDON, DERBYSHIRE, ENGLAND — GENEALOGICAL RESOURCES | WANGANUI COLLEGIATE SCHOOL 1865 — 1947 | WESTERN BAY OF PLENTY, NEW ZEALAND — GENEALOGICAL RESOURCES