Ahmed Tekuder (reigned 1282-1284) was the brother of Abaqa. Born Nicholas Tekuder Khan as a Nestorian Christain, Tekuder later converted to Islam and changed his name to Ahmed Tekuder.

When Tekuder assumed the throne in 1282, he turned the Ilkhan empire into a Sultanate. However, in an attempt to restrain Buddhism and Nestorianism, he initiated serious persecutions against the fidiciary offices of these religions. However, Arghun, the governor of Khorassanun, unlike his uncle Tekuder, who was a Buddhist, asked the Yuan emperor for help. When Arghun received no reply, he declared war against Tekuder. Tekuder asked for help from Sultan Malmuk but he did not co-operate with Tekuder. Having only a small army, Tekuder was defeated by Arghun's large army, and he was eventually killed.