Bertil Karlsson
Karl Bertil Karlsson was a Swedish athlete who competed at the 1952 [Summer Olympics] in Helsinki. He finished 13th in the Athletics at the [1952 Summer Olympics – Men's 10,000 metres|men's 10,000 metres] event and was eliminated in the heats of the Athletics at the [1952 Summer Olympics – Men's 5000 metres|men's 5000 metres]. He was the Swedish champion in the 4,000 metre cross-country in 1949, the 5000 metre distance in 1950, and the 10,000 metre distance in 1952.