Mattias Thunman Hälldahl

Mattias Thunman Hälldahl (born September 7, 1993) is a Swedish ice hockey defenceman. He is currently playing with Timrå IK of the Swedish Hockey League (SHL).

Thunman-Halldahl made his Elitserien (now the SHL) debut playing with Timrå IK during the 2012–13 Elitserien season.