Linton Muldoon Treacy (June 4, 1887 – March 13, 1929), better known as Pete Muldoon, was a Canadian ice hockey coach. He was the coach of the Seattle Metropolitans from 1915 to 1924 and led the team to a Stanley Cup championship in 1917. Muldoon later became the first coach of the Chicago Black Hawks. He was known for reportedly putting a curse on the Black Hawks after he was fired at the end of the 1926–27 season.