| Entry No | Name | Title | Link to full record |
| 2090 | Oshry, Efroim | Hurbn Lit`e | Full Record |
| 2185 | Osipov, S. | Tsen yor "Ark" (Arbeter ring klub) : geshikhtlikher dokument ; vi menshn hobn far zikh a yontev gezukht un gefunen | Full Record |
| 985 | Osman, Israel | Dos bukh fun nisyoynes : fun keler alte sheymes | Full Record |
| 1108 | Ostreger, W. | Di lider fun mayne lider | Full Record |
| 1109 | Ostreger, W. | Meylekh Ravitsh bibliografye = Melech Ravitch bibliography | Full Record |
| 1926 | Ostropoler, Hershele | Mayses, vitsn un shpitslekh fun Hershel Ostropolyer | Full Record |
| 1927 | Ostropoler, Hershele | Mayses, vitsn un shpitslekh fun Hershl Ostropolyer | Full Record |