Peter Arnold "Pete" McDuffe (born February 16, 1948) is a Canadian former professional ice hockey goaltender who played for the St. Louis Blues, New York Rangers, Kansas City Scouts and Detroit Red Wings in the National Hockey League (NHL) and the Indianapolis Racers in the World Hockey Association (WHA).
Born in Milton, Ontario, McDuffe made the move from defence to goaltender in peewee around 1958. McDuffe began his junior career in St. Catharines with a Junior B team before being promoted to the A team with the St. Catharines Blackhawks of the OHA in 1964-65, where he played parts of four seasons. In his last season in St. Catharines, McDuffe won the best goaltending award with a 2.92 GAA.
In 1966-67, he was called up and started two games with the Buffalo Bisons of the American Hockey League.
In 1968-69, he moved to the EHL and played for the Greensboro Generals, where he collected a 36-19-9 record, before being traded to New York Rangers affiliate Omaha in the Central Hockey League.
In the summer of 1970, McDuffe served as a coach at the famous hockey school in Haliburton, Ontario, Hockey Haven, with NHLers Jim Dorey, Brian Watson, Bill Goldsworthy, and Phil Myer.
McDuffe made the second all-star team with Omaha in 1969-70, and the first all-star team in 1970-71, leading them to championships both seasons. He won the 1970–71 Central Hockey League Most Valuable Player award with the Omaha Knights. He also won the 1971–72 Western Hockey League Leading Goaltender Award with the Denver Spurs.
McDuffe got his first taste of NHL action with the St. Louis Blues, although he was happy to return to the New York Rangers system the following season, stating about the coaching, "In St. Louis, they don't tell you which end of the stick to hold."
Between 1971 and 1976, he played in 57 NHL regular season games with a goals-against average of 4.08.
He became one of the first inductees in his hometown of Milton, Ontario's Walk of Fame in 2007.
In 2017, he was inducted into the Milton Sports Hall of Fame.