Mattias Karlsson

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