Lkken IF was originally two clubs known as IF Thor which was founded in 1918, and Lkken AIL that lasted from 1924 to 1926, then IF Thor changed federation to be part of Red Sport, which resulted in their previous federation, Workers' Confederation of Sports, to incorporate another team called SK Fjell.
The name was changed to Lkken IF on 26 July 1947 as two clubs merged with Lkken IL. One club was IF Thor, founded in 1918 and incorporating the short-lived Lkken AIL (19241926). IF Thor was a member of the Workers' Confederation of Sports, but later joined the Red Sport federation. When they did that, a new Workers' Confederation of Sports club was founded by the name SK Fjell in 1930. 
