Kazuya Okazaki (岡崎 和也, Okazaki Kazuya; born 10 May 1972) is a Japanese former professional racing cyclist particularly known for his time trial skills. He won the Japanese National Time Trial Championships four times in 2002, 2003, 2007, and 2008. He also won the time trial event at the 2002 Asian Cycling Championships. In road race competitions, his best result was a victory in the 2003 Tour de Okinawa.