Karl "Kalle" Anshelm Ansén (July 26, 1887 – July 20, 1959) was a Swedish amateur football (soccer) player who competed in the 1908 Summer Olympics and in the 1912 Summer Olympics.
In the 1908 tournament he was a part of the Swedish football team.
Four years later he was a member of the Swedish Olympic squad. He played as forward one match in the main tournament as well as one match in the consolation tournament.