Juhani Helenius
Juhani Helenius was a Finnish sprint canoer who competed in the late 1950s. He was born in Hämeenlinna. At the 1956 [Summer Olympics], he was disqualified in the heats of the Canoeing at the [1956 Summer Olympics – Men's K-2 1000 metres|K-2 1000 m] event. Four years later in Rome, he was eliminated in the semifinals of the Canoeing at the [1960 Summer Olympics – Men's K-1 4 × 500 metres|K-1 4 × 500 m] event.