Encyclopedias, Almanacs, Transcripts, and Maps
- Oliger, Livarius
- Oliphant, Laurence°
- Olitski, Jules
- Olitzki, Aryeh Leo
- Olitzky
- Olitzky, Kerry M.
- Oliva, Abbey of
- Olivaint, Pierre
- Oliver Y Fullana, Nicolás de
- Olivero, Betty
- Olivétan, Pierre Robert
- Olivetti
- Oliveyra, Solomon ben David de
- Olkusz
- Ollé-Laprune, Léon
- Ollendorff, Franz
- Ollendorff, Friedrich
- Olmedo
- Olmert, Ehud
- Olmo, Jacob Daniel ben Abraham