Yrjö Jalmari "Yka" Hietanen (12 July 1927 – 26 March 2011) was a Finnish canoe sprinter who competed at the 1952 and 1956 Olympics.
In 1952 he won two gold medals with Kurt Wires in the 1000 m and 10000 m events.
In 1956 he placed seventh over 10000 m.[1]
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