Rustam Beg Bayandur () was an Aq Qoyunlu prince, and one of the contesters in 1492âÂÂ1497 during the dynastic struggle that had erupted following the death of Ya'qub Beg (). He was a grandson of Uzun Hasan, and son of Maqsud. He was deposed by his cousin Ahmad Beg.
Contributions to religious architecture continued under the descendants of Uzun Hasan, as for the in Isfahan, commissioned under Rustam Beg.