Aksel Larsen, Danish lawyer and politician (d. 1972)
Aksel Larsen (5 August 1897 – 10 January 1972) 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.

Larsen became leader of the Communist Party in 1932, and was elected to Folketinget (the lower chamber of Danish parliament Rigsdagen) in 1932. Together with other Danish communists, Larsen had to go into hiding in 1941 when the Danish police began arresting all party members. After the liberation of World War II, Larsen became a minister in the liberation cabinet and subsequently led his party to its best-ever result in the 1945 election, in which it took an eighth of all the votes. The election, however, resulted in a Liberal government, and Larsen's party was mostly shunned by the other party leaders.

After the Hungarian Revolution of 1956, Larsen condemned the Soviet Union's action. This led him into conflict with the members of the party leadership who had a greater loyalty to Moscow; a conflict that ended with his expulsion in November 1958. Larsen's reaction was to establish the Socialist People's Party (Socialistisk Folkeparti, abbreviated SF), which, thanks to Larsen's personal popularity, entered parliament at the 1960 election at the expense of the Communists, who from then on played only a very peripheral role in Danish politics.

Larsen himself, who was, especially in later years highly respected among politicians, even if his party was seen as somewhat irresponsible, remained the leader of the Socialists until 1968 when he handed this over to Sigurd Ømann. He remained an MP until his death in 1972.

In 2005, the Danish Institute for International Studies concluded that Larsen held a secret working relationship between 1958 and 1964 with one of Denmark's allied partners in the Cold War, stating that "Larsen... obviously was an agent of a Western intelligence service."