Jonas Serge Martin (born 9 April 1990) is a French professional footballer who plays as a midfielder for Ligue 2 club Boulogne.
Born in Besançon, Martin was a Montpellier HSC youth graduate, In April 2011, he signed a new contract with the club until 2015. On 2 September 2011, he was loaned to Ligue 2 club Amiens SC for one year.
In May 2014, Martin extended his contract with Montpellier until 2017.
On 9 June 2016, Martin signed a three-year deal with La Liga side Real Betis.
In 2017, Martin moved back to France, joining newly promoted RC Strasbourg.
In July 2022, Martin signed with Lille.