Encyclopedias, Almanacs, Transcripts, and Maps
- Oesterreichische Nationalbibliothek
- Oesterreichisches Central Organ Fuer Glaubensfreiheit, Cultur, Geschichte und Literatur der Juden
- Oettingen
- Ofakim
- Ofek, Avraham
- Ofek, Uriel
- Ofer, Avraham
- Offenbach
- Offenbach, Isaac
- Offenbach, Jacques
- Offenburg
- Office for Film and Broadcasting
- Office of Special Investigations
- Office of the Dead
- Office, Ecclesiastical
- Official, Nathan ben Joseph and Joseph
- Offner, Stacy
- Ofir, Arie
- Ofir, Shaike
- Ofner, Francis-Amir