| Levan I Dadiani | |
|---|---|
 Levan I Dadiani in a fresco in the Tsalenjikha Cathedral. | |
| Prince of Mingrelia | |
| Reign | 1533–1572 |
| Predecessor | Mamia III Dadiani |
| Successor | George III Dadiani |
| Died | 1572 |
| Issue | George III Dadiani Mamia IV Dadiani Manuchar I Dadiani |
| Dynasty | Dadiani |
| Father | Mamia III Dadiani |
| Religion | Georgian Orthodox Church |
Levan I Dadiani (also Leon; Georgian: ლევან [ლეონ] I დადიანი; died 1572) was a member of the House of Dadiani and ruler of Odishi, that is, Mingrelia, in western Georgia. He succeeded on the death of his father, Mamia III Dadiani, as eristavi ("duke") of Odishi and ex officio mandaturt-ukhutsesi ("Lord High Steward") of Imereti in 1533. Dadiani's break with the king of Imereti brought about his downfall and imprisonment in 1546. He was able to escape and regain his possessions, securing Ottoman support for his independence from Imereti.