Phraates I
| Phraates I | |
|---|---|
| Arsaces | |
 Coin of a Parthian ruler, possibly Phraates I. Minted at Hekatompylos between 185-132 BC | |
| King of the Arsacid dynasty | |
| Reign | 176–171 BC |
| Predecessor | Priapatius |
| Successor | Mithridates I |
| Died | 171 BC |
| Dynasty | Arsacid dynasty |
| Father | Priapatius |
| Religion | Zoroastrianism |
Phraates I (Parthian: