Cliff Swain (born March 21, 1966) is a professional racquetball player and coach from Boston, Massachusetts. Known for his dominant drive serve and on-court intensity, Swain finished as the #1 player on the International Racquetball Tour (IRT) six times -- in 1990, 1993, 1994, 1995, 1998, and 2002. He won US Open Championships in 1997 and 2001, and was inducted into the USA Racquetball Hall of Fame in 2003. A legendary figure in racquetball for over 3 decades, Swain still plays professionally and is quickly becoming a sought-after professional coach as well.