Siyar Bahadurzada (;[1] born 17 April 1984) is a retired Afghan-born Dutch mixed martial artist who competed in the Welterweight division of the Ultimate Fighting Championship, making him the first Afghan to compete in the promotion. He currently works as an instructor for Evolve MMA in Singapore.[2] A professional competitor since 2001, he had also competed for World Victory Road, RINGS, and for Shooto, in which he held the title of Shooto Middleweight Champion.