Alle mit Nachnamen O
| Name | Vorname | Geburtsdatum | Todesdatum | Todesort |
|---|---|---|---|---|
| Ollendorf | Anna | 01/09/1903 | 11/10/1944 | Auschwitz |
| Obermeier | August | 21/08/1903 | 17/06/1936 | Von der Heydts Gasse |
| Opfer | Auguste | 23/03/1903 | 13/06/1944 | Meseritz-Obrawalde |
| Ollendorf | Hans | 01/07/1902 | 15/11/1941 | Minsk |
| Osser | Gertrude | 30/04/1900 | 10/09/1942 | Auschwitz |
| Ochel | Edmund | 09/05/1893 | 29/03/1945 | Langenstein-Zwieberge Außenlager KZ Buchenwald |
| Ollendorff | Paul | 26/08/1892 | 11/09/1944 | Auschwitz |
| Owczarek | Ignatz | 10/10/1890 | 27/01/1945 | Wuppertal |
| Owczarczyk | Valentin | 05/01/1890 | 26/02/1945 | Wuppertal |
| Oberländer | Olga | 26/07/1887 | 17/07/1942 | KZ Majdanek |
| Oskam | Abraham | 09/01/1887 | 16/01/1945 | KZ Mauthausen |
| Oskam | Abraham | 09/01/1887 | 16/01/1945 | KZ Mauthausen |
| Orgler | Adele | 13/05/1885 | 30/10/1944 | Auschwitz |
| Oestreich | Leo | 02/06/1883 | 18/10/1944 | Auschwitz |
| Ostwald | Paul | 03/11/1882 | 08/05/1945 | Sobibor |
| Oswald | Elsa | 01/06/1882 | 29/09/1942 | Theresienstadt |
| Ohnesorge | Gustav Franz | 28/08/1880 | 16/07/1944 | Meseritz-Obrawalde |
| Otto | Heinrich | 08/09/1879 | 28/04/1941 | Hadamar |
| Ohliger | Ernst Rudolf | 23/10/1878 | 12/08/1944 | Meseritz-Obrawalde |
| Ogier | Adrianus | 24/11/1876 | 27/05/1945 | Wuppertal |
| Oehlingarth | Friedrich | 30/03/1875 | 28/07/1941 | Hadamar |
| Okowski | Neumann | 29/09/1874 | 23/09/1942 | Treblinka |
| Orgler | Kurt | 30/12/1873 | 30/10/1944 | Auschwitz |
| Okowski | Elisa | 06/02/1872 | 23/09/1942 | Treblinka |
| Oppenheimer | Salomon | 28/04/1870 | 22/10/1942 | Theresienstadt |