William Arthur Masse (born July 6, 1966 in Manchester, Connecticut) is a retired professional baseball outfielder.
Masse was the hitting coach for the Buffalo Bisons in June of 09 replacing Luis Natera. Before being a coach in Buffalo he was the hitting coach for the Binghamton Mets in 2009. He was replaced by Natera in Binghamton. He was replaced by Jack Voigt for 2010.