Aksel Larsen was a Danish politician who was chairman of the Communist Party of Denmark (DKP), and chairman and founder of the Socialist People's Party. He is remembered today for his long service in the Communist Party of Denmark, for his time as a concentration camp inmate at Sachsenhausen, and for being the founder of the Socialist People's Party.

The Communist Party of Denmark is a communist party in Denmark. The DKP was founded on 9 November 1919 as the Left-Socialist Party of Denmark, through a merger of the Socialist Youth League and Socialist Labour Party of Denmark, both of which had broken away from the Social Democrats in March 1918. The party adopted its present name in November 1920, when it joined the Comintern.