Mattias Karlsson may refer to: Mattias Karlsson (orienteer) (born 1972), Swedish orienteering competitor. Mattias Karlsson (ice hockey) (born 1985), Swedish professional ice hockey player. Mattias Karlsson (politician) (born 1977), Swedish politician. Mattias Falck (né Karlsson), Swedish table tennis player https://en.wikipedia.org/wiki/Mattias_Karlsson