| Osaka Ohtani University | |
| Native Name: | 大阪大谷大学 |
| Native Name Lang: | jp |
| Image Alt: | Building of Osaka Ohtani University |
| Type: | Private |
| Established: | 1966 |
| Religious Affiliation: | Ōtani-ha, Buddhism |
| City: | Tondabayashi |
| State: | Osaka |
| Country: | Japan |
| Coordinates: | 34.4825°N 135.5811°W |
| Campus Type: | Suburb |
| Pushpin Map: | Japan Osaka Prefecture |
| Pushpin Map Caption: | Osaka Ohtani University |
is a private university in Tondabayashi, Osaka, Japan. The school was established in 1966 as a junior women's college. In 2006 it became coeducational, adopting the present name.