Harold John Allen (January 23, 1923 – August 2, 1990) was a Canadian ice hockey player with the Edmonton Mercurys.

Allen won a gold medal at the 1950 World Ice Hockey Championships in London, England.

The 1950 Edmonton Mercurys team was inducted to the Alberta Sports Hall of Fame in 2011.

[2] He later coached the Edmonton Oil Kings, and was named Edmonton's Sportsman of the Year after his Oil Kings team appeared in the 1959–60 Memorial Cup.

This biographical article relating to a Canadian ice hockey centre born in the 1920s is a stub.