William Tulip Reay (August 21, 1918 – September 23, 2004) was a Canadian professional ice hockey player and coach.

Reay played ten seasons in the National Hockey League (NHL) from 1943 to 1953, winning two Stanley Cups.

Born in Winnipeg, Manitoba, he played in the NHL for ten seasons with the Montreal Canadiens and the Detroit Red Wings.

In his fourth year, 1966–67, he led the Hawks to the league's best record, the first time they had done so in their 41-year history.

Before beginning a career from which he retired with the second most victories in NHL history, Reay was a Canadiens centre who is believed to be the first player to raise his arms and stick to celebrate a goal when he did so after scoring in a game in 1947.