Alle mit Nachnamen O
| Name | Vorname | Geburtsdatum | Todesdatum | Todesort |
|---|---|---|---|---|
| Ollendorff | Peter | 19/04/1936 | 11/10/1944 | Auschwitz |
| Ollendorff | Paul | 26/08/1892 | 11/09/1944 | Auschwitz |
| Omlo | Nicolaas | 09/08/1919 | 01/01/1945 | Wuppertal |
| Ommerborn | Ellenburga | 18/09/1909 | 02/05/1941 | Hadamar |
| Opfer | Auguste | 23/03/1903 | 13/06/1944 | Meseritz-Obrawalde |
| Oppenheimer | Elsbeth | 02/03/1910 | 15/11/1941 | Minsk |
| Oppenheimer | Salomon | 28/04/1870 | 22/10/1942 | Theresienstadt |
| Optschenko | Alex | 26/07/1942 | 19/03/1944 | Durchgangslager Giebel |
| Optschenko | Alex | 26/07/1942 | 19/03/1944 | Durchgangslager Giebel |
| Orgler | Adele | 13/05/1885 | 30/10/1944 | Auschwitz |
| Orgler | Kurt | 30/12/1873 | 30/10/1944 | Auschwitz |
| Orlow | Peter | 10/07/1927 | 11/05/1944 | Fudikars Wald |
| Orlowska | Ksenija | 17/06/1945 | Wuppertal | |
| Orscharenko | Anna | 06/09/1926 | 03/06/1943 | Wuppertal |
| Orth | Otto | 03/03/1910 | 21/05/1941 | Hadamar |
| Oschuba | Anny | 30/05/1943 | Wuppertal | |
| Osinski | Helena | 14/02/1925 | 30/05/1943 | Wuppertal |
| Oskam | Abraham | 09/01/1887 | 16/01/1945 | KZ Mauthausen |
| Oskam | Abraham | 09/01/1887 | 16/01/1945 | KZ Mauthausen |
| Oskiewicz | Maria | 13/03/1945 | Wuppertal | |
| Osser | Gertrude | 30/04/1900 | 10/09/1942 | Auschwitz |
| Osser | Veilchen | 07/01/1868 | 23/09/1942 | Treblinka |
| Ostheim | Hans | 12/12/1914 | 02/07/1944 | Auschwitz |
| Ostwald | Paul | 03/11/1882 | 08/05/1945 | Sobibor |
| Oswald | Elsa | 01/06/1882 | 29/09/1942 | Theresienstadt |