Paul Garnet Henderson (born January 28, 1943) is a Canadian former professional ice hockey player. A left winger, Henderson played 13 seasons in the National Hockey League (NHL) for the Detroit Red Wings, Toronto Maple Leafs and Atlanta Flames and five in the World Hockey Association (WHA) for the Toronto Toros and Birmingham Bulls. He played over 1,000 games between the two major leagues, scoring 376 goals and 758 points. Henderson played in two NHL All-Star Games and was a member of the 1962 Memorial Cup-winning Hamilton Red Wings team as a junior.

Henderson is best known for playing for Team Canada in the 1972 Summit Series against the Soviet Union. The series was viewed as a Cold War battle for both hockey and cultural supremacy. Henderson scored the game-winning goal in each of the final three games, the last of which has become legendary in Canada and made him a national hero: it was voted the "sports moment of the century" by The Canadian Press and earned him numerous accolades. Those three wins secured the series for the Canadians by the narrowest of margins. Henderson has twice been inducted into Canada's Sports Hall of Fame: in 1995 individually and in 2005 along with all players of the Summit Series team. He was inducted into the International Ice Hockey Federation Hall of Fame in 2013.

A born-again Christian, Henderson became a minister, motivational speaker and author following his playing career. He has co-written three books related to hockey or his life. Henderson was made a Member of the Order of Canada in 2013 and of the Order of Ontario in 2014.

Henderson was born January 28, 1943, near Kincardine, Ontario. His mother, Evelyn, went into labour while staying at his father's parents' farm in the nearby community of Amberley during a snowstorm. She gave birth to Paul while the family was crossing Lake Huron via horse-drawn sleigh attempting to reach the hospital in Kincardine. His father, Garnet, was fighting for Canada during the Second World War at the time and did not meet his son until Paul was nearly three years old. Garnet worked for the Canadian National Railway following his return and the family – Paul was the eldest to brother Bruce and sisters Marilyn, Coralyn and Sandra – moved frequently to different posts in Ontario before settling in Lucknow.

The family often struggled financially, though Garnet was always able to provide the basic life necessities. Paul's first experiences with hockey came at a young age in the basement of a local restaurant serving western fare operated by Charlie Chin, an immigrant from China who settled in Lucknow. Henderson played with Chin's youngest sons using a ball instead of a puck. The Chin family gave Henderson his first set of hockey equipment; he had been using old catalogues as shin pads. His father coached his youth teams, and at one minor hockey tournament, told his teammates simply to "just give the puck to Paul and get out of his way". That incident remained with Henderson throughout his life: while it embarrassed him at the time to be singled out in front of his friends and teammates, he later realized it stood as an affirmation and expression of his father's pride in him and his abilities.

It was in Lucknow where Henderson met his future wife, Eleanor, at the age of 15 while he was working at a grocery store. They married in 1962 and, wanting to ensure he could provide for his wife, he considered giving up the game to become a history and physical education teacher. His father convinced him to remain in hockey, warning him that he would regret it for the rest of his life if he never tried to make the National Hockey League (NHL). After considering his father's advice and talking with Eleanor, Henderson decided to play two additional years, and if he had not reached the NHL by 1964, he would quit the game and focus on his education.

Henderson attracted the attention of NHL scouts at the age of 15 when he scored 18 goals and 2 assists in a 21–6 victory in a juvenile playoff game. The junior affiliates of both the Boston Bruins and Detroit Red Wings offered him tryouts. He chose to sign with the Red Wings as their junior teams were based in Hamilton, which was closest to his home. He played the 1959–60 season with the Junior B Goderich Sailors and was the youngest player on the team. Henderson moved up to the Junior A Hamilton Red Wings in 1960–61 where he was an extra forward for much of the season. Returning to Hamilton in 1961–62, he became a regular player on the team, and recorded 24 goals and 43 points in 50 games.

Hamilton won the Ontario championship that season, then defeated the Quebec Citadelles in four consecutive games to win the eastern Canadian championship. Henderson scored a goal in the clinching game, a 9–3 win, that propelled the Red Wings to their first Memorial Cup final in the team's history. They faced the Edmonton Oil Kings in the 1962 Memorial Cup final series. The Red Wings won the best-of-seven set 4–1 to capture the national championship. Henderson scored a goal in the deciding game, a 7–4 victory before over 7,000 fans at Kitchener, Ontario. He finished with seven goals and seven assists in 14 Memorial Cup playoff games.