Sutay or Sutai (Mongolian: ᠰᠤᠲᠠᠶ, Persian: سوتای) (died 1332) was a Mongol emir and governor of Diyar Bakr.
Turkish historian Faruk Sümer proposed that he was of the Sunud tribe and Sutai was just an abbreviation for Sunitai (Mongolian: Сөнөд + ай, lit.
[3] But Faruk Sümer doubted that and proposed that Mamluk historians mistook him for Chagatay the Younger otherwise known as Sunitai - an emir from the Sunud tribe and Hulagu's mingghan commander.
Sutai led a rear guard composed of 15,000 soldiers[6] and won a victory after a decisive battle on 27 April 1299 near Akşehir (modern Suşehri).
He was relieved of viceroyalty in Diyar Bakr in 1316, upon the succession of Abu Sa'id by his chief commander Emir Sevinch.
Sutai did not take part in Qurumshi and Irinjin's disastrous revolt in 1319, unlike his son Barambay, and was granted the viceroyalty of Diyar Bakr for a second time.
After Sutai's return to Diyar Bakr, he granted Ahlat to his three sons as his subordinates, thus establishing a hereditary government.