| Meherdates | |
| Succession: | King of the Parthian Empire |
| Reign: | 49 – 51 AD |
| Predecessor: | Gotarzes II |
| Successor: | Gotarzes II |
| Dynasty: | Arsacid dynasty |
| Father: | Vonones I |
| Death Date: | Unknown |
| Religion: | Zoroastrianism |
Meherdates (xpr| Mihrdāt) was a Parthian prince who competed against Gotarzes II for the Parthian crown from 49 to 51 AD. A son of Vonones I, he was ultimately defeated and captured by Gotarzes II, who spared him, but had his ears mutilated, an act that disqualified him from inheriting the throne.