Hasse Evert Thomsén (27 February 1942 – 26 April 2004) was a heavyweight boxer from Sweden who won a bronze medal at the 1972 Summer Olympics.

In the semifinals he was defeated by Romania's eventual silver medalist Ion Alexe on points (0:5).

[1] In 1973–74, Thomsén had five professional bouts in Europe with a result of one loss and 4 draws.

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