Vukan (Serbian: Вукан, Greek: Βολκάνος; c. 1050 – 1115) was the Grand Prince of Serbia (Rascia) from 1083 until his death in 1112. He ruled together with his brother, Marko. With the death of his uncle Constantine Bodin in 1101, he becomes the most powerful ruler of the Serbian principalities. He defeated the Byzantines several times, conquering parts of north Macedonia. He is the eponymous founder of the Vukanović dynasty. Vukan again marched south, into Macedonia. Alexios could not do anything about him as the Crusade took place. In 1106 Vukan submitted to Alexios.