Kjartan Kristiansen (born 14 August 1963 in Trondheim, Norway) is a Norwegian musician, best known as the guitarist and backing vocalist of the Norwegian band DumDum Boys, where he also serves as lyricist and main songwriter. Kristiansen is also a member of the punk band Wannskrækk and the rock band Racer along with the other members of DumDum Boys.
