Mattias is a masculine given name found most prominently in Northern Europe. It is a cognate of Matthew and Matthias, and may refer to:
In sports:
Mattias Bjärsmyr, Swedish football defender
Mattias Ekström, Swedish racing driver
Mattias Eriksson, Swedish archer
Mattias Norström, Swedish defenceman for Los Angeles Kings of the National Hockey League
Mattias Öhlund, Swedish defenceman for Vancouver Canucks of the National Hockey League
Mattias Tedenby, Swedish ice hockey player who currently plays for HV71 of the Swedish Elitserien
Mattias Weinhandl, Swedish ice hockey player
In other fields:
Mattias Eklundh, the lead guitarist and vocalist of Swedish power trio Freak Kitchen
Mattias Flink, Swedish mass murderer
Mattias Gardell, Swedish scholar of comparative religion
Mattias Klum, Swedish photographer
Tomas Mattias Löw, Swedish film director
