William Martin Boucher (November 10, 1899 – November 4, 1958) was a Canadian professional ice hockey right winger.
Born in Ottawa, Ontario, he played in the National Hockey League for the Hamilton Tigers, Montreal Canadiens, Boston Bruins and New York Americans. He also played for the New Haven Eagles and Bronx Tigers of the Canadian-American Hockey League. His name was engraved on the Stanley Cup with Canadiens in 1924.
He died of a heart attack on November 4, 1958.
Billy was one of six sons born to Tom Boucher and Annie Carroll. His paternal grandfather, Antoine Boucher was French while his other grand-parents were Irish in descent. His brothers Bobby, Frank and Georges would also become professional ice hockey players. There were two other brothers, Carroll and Joseph, and two sisters, Irene and Lily. Their father played rugby football, winning the Canadian championship in 1894, 1896, 1897 and 1901.