Rostam or Rustam (Persian: رُستَم‎, pronounced [ɾos'tæm, ɾʊs'tæm]) is the epic hero of the Persian epic Shahnameh in Persian mythology, and son of Zal and Rudaba. In the story, Rostam and his predecessors were natives of the Zabulistan region of Sistan province (present-day eastern Iran). Rostam's mother Rudaba was a princess of Kabul.

In some ways, the position of Rostam in the historical tradition is parallel to that of Surena, the hero of the Battle of Carrhae. Rostam was always represented as the mightiest of Iranian paladins (holy warriors), and the atmosphere of the episodes in which he features is strongly reminiscent of the Parthian period. He was immortalized by the 10th-century Persian poet Ferdowsi in the Shahnameh, or Epic of Kings, which contains pre-Islamic Iranian folklore and history.