Mathias Serin (born 1 August 1991) is a French professional footballer who plays as a midfielder for Championnat National 3 club Lège-Cap-Ferret.
Serin began playing football in the youth system of Bordeaux. He played amateur football before turning professional with Ligue 1 club Angers at age 23.
After making his debut in the French lower divisions, Serin joined Angers in June 2015. He made his full professional debut a few months later, in a 1âÂÂ0 Ligue 1 victory over Troyes, coming up as a late game substitute for Abdoul Camara.
After he left Angers, Serin played semi-pro football with Dunkerque, and the club's supporters chose him as player of the month for December 2017. One season later, he joined local rivals Boulogne. In November 2019 he left Boulogne for Le Puy.