Uzun Hasan, 9th Shahanshah of the Turkoman Aq Qoyunlu dynasty (born 1423)

Uzun Hasan or Uzun Hassan was a ruler of the Turkoman Aq Qoyunlu state and is generally considered to be its strongest ruler. Hasan ruled between 1452 and 1478 and presided over the confederation's territorial apex, when it included parts or all of present-day Iraq, Turkey, Azerbaijan, Iran, Transcaucasia and Syria.

The Aq Qoyunlu or the White Sheep Turkomans was a culturally Persianate, Sunni Turkoman tribal confederation. Founded in the Diyarbakir region by Qara Yuluk Uthman Beg, they ruled parts of present-day eastern Turkey from 1378 to 1508, and in their last decades also ruled Armenia, Azerbaijan, much of Iran, Iraq, and Oman where the ruler of Hormuz recognised Aq Qoyunlu suzerainty. The Aq Qoyunlu empire reached its zenith under Uzun Hasan.