| Church: | Roman Catholic |
| Diocese: | Roman Catholic Diocese of Passau |
| Predecessor: | George of Hohenlohe |
| Successor: | Ulrich of Nußdorf |
| Term: | 1424–1451[1] |
| Bishop of Passau | |
| Type: | Bishop |
| Birth Date: | 1381 |
| Birth Place: | Rosenheim |
| Death Place: | Passau |
Leonhard von Laiming (1381 – 24 June 1451[2]) was a German prince-bishop of Passau from 1424 until his death in 1451.[3]