Erling Knudtzon (born 15 December 1988) is a Norwegian professional footballer who plays as a midfielder. He last played for Eliteserien club Lillestrøm.
Knudtzon began his career with Ullern, joining FC Lyn Oslo in 2007. He made his first team debut on 14 April 2007 against Fredrikstad, and played twenty Norwegian top flight games in his first season, most of them as a starter.
On 1 February 2010 Knudtzon signed a three-year contract with Lillestrøm, and reunited with his former coach Henning Berg. Knudtzon played 231 league games for the club.
On 17 July 2018, Molde FK announced that they had signed Knudtzon to a three-year contract, beginning 1 January 2019. He made his Molde debut on 31 March 2019 in a 1âÂÂ1 away draw against Sarpsborg 08. On 22 April 2019, Knudtzon scored his first goal for Molde in the club's 2âÂÂ0 away win against his former team Lillestrøm. The game also marked his 300th appearance in the top division of Norwegian football.
On 15 December 2023, Lillestrøm announced the return of Knudtzon on a one-year contract.
Knudtzon played a total of 17 games and scored two goals for Norway at international youth and under-23 level.
Lillestrøm SK
Molde