(born 1 September 1970) is a Japanese former ski jumper.
He competed from 1991 to 2002. He won a gold medal at the 1998 Winter Olympics in Nagano in the Team large hill event. Saito is a three-time FIS Nordic World Ski Championships medalist with two silvers (1995: Individual normal hill and 1997: Team large hill) and one bronze (1995: Team large hill).