Finnish boxer Kurt Mattsson competed in the middleweight and light-middleweight divisions during the 1960s. Mattsson finished in third place in the Finnish championships in 1961 before winning back-to-back titles in 1962 and 1963. He had a similar record in the Nordic championships, with a third-place finish in 1961, before winning the title in 1963. Mattsson boxed in the light-middleweight division at the 1964 Tokyo Olympics where he defeated Bekele Alemu before losing to Józef Grzesiak. After the Olympics he turned professional, competing in 13 bouts winning nine of them. Mattsson’s last fight was in December 1969, which he won on points.