Erkki Aarno Mallenius (12 January 1928 – 2 July 2003) was a Finnish amateur boxer who won a bronze medal in the light welterweight division at the 1952 Olympics.

Mallenius took up boxing in 1945 and in 1946 won the Finnish junior lightweight title.

At the Olympics he won his first two bouts, but broke a carpal bone in a hand in the second one, and hence withdrew from the semifinal and retired from boxing.

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