| Oshi Domain 忍藩 | |
|---|---|
| under Tokugawa shogunate Japan | |
| 1590–1871 | |
| Capital | Oshi Castle |
| • Type | Daimyō |
| Historical era | Edo period |
• Established | 1590 |
• Disestablished | 1871 |
| Today part of | part of Saitama Prefecture |
Oshi Domain (忍藩, Oshi-han) was a feudal domain under the Tokugawa shogunate of Edo period Japan, located in Musashi Province (modern-day Saitama Prefecture), Japan. It was centered on Oshi Castle in what is now part of the city of Gyōda, Saitama.