Kaarlo Anton "Kalle" Koskelo (12 April 1888 – 21 December 1953) was a Greco-Roman wrestler from Finland who won the featherweight event at the 1912 Olympics.
He settled in Astoria, Oregon, where he became a prominent local businessman.
Their son Elmer Koskelo (1912–1997) was a star javelin thrower at the University of Oregon.
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