Kristoffer-August Sundquist Klaesson (born 27 November 2000) is a Norwegian football player currently playing as a goalkeeper for Vålerenga. He signed his first professional contract in June 2016. Klaesson made his Eliteserien debut for Vålerenga on 30 June 2019 against Haugesund, following injury to first chioce goalkeeper Adam Kwarasey Larsen. The game ended with a 4-1 win for Vålerenga. Klaesson also started the following game, a 6-0 win against Bodø/Glimt.
- As of 25 November 2019