John Herbert Dickenson is a retired Canadian ice hockey left winger.
Dickenson was born in Hamilton, Ontario.
He played in the National Hockey League for the New York Rangers. He played in the Ontario Hockey Association with the Hamilton Aerovox in the 1948-1949 hockey season, and the next two with the Guelph Biltmores. Scouted by the Rangers, he signed with them in 1951 and joined the Cincinnati Mohawks, their farm team
He played in 36 games for the Mohawks and scored 23 points.
Dickenson also played 37 games for the Rangers in the 1951-1952 season, scoring 14 goals and 13 assists for a total of 27 points. In his second season with the Rangers, he sustained a career-ending eye injury at the age of 20 on November 5, 1952 in a game against the Toronto Maple Leafs when he was struck in the face by a shot.
He was rushed to the hospital after being rendered unconscious and bleeding on the ice. He eventually lost sight in his right eye and never played another National Hockey League game again.