Darkhan Argynovich Bayakhmetov (; born August 21, 1985 in Oskemen, Shyrgys Qazaqstan) is an amateur Kazakh Greco-Roman wrestler, who played for the men's welterweight category. He won a gold medal for his division at the 2009 Asian Wrestling Championships in Pattaya, Thailand, and silver at the 2010 Asian Games in Guangzhou, China.