Gennady Mikhaylov (Russian: Геннадий Михайлов, born 8 February 1974 in Cheboksary, Chuvash ASSR), is a former professional road bicycle racer from Russia. He last rode for UCI ProTour Team Katusha. He was part of the successful team Lotto–Adecco, in which he assisted Robbie McEwen to numerous sprint victories. He won his first professional race in 2002. Before joining Astana for the 2007 season, he spent four years with U.S. Postal Service, from 2003 until 2006.