Sébastien Mathieu Corchia (pronounced [ˈkɔrkja]; born 1 November 1990) is a French professional footballer who plays as a right-back for Amiens.

[5][6][7] Corchia was born in Noisy-le-Sec, Seine-Saint-Denis[2] and started his career with hometown club Stade Olympique de Rosny-sous-Bois Football.

[9] Corchia remained in Le Mans's youth system until receiving his first call up to the senior squad on 14 February 2009 for the team's league match against Nice.

[10] The following week, he earned another start against Marseille where he went up against the likes of Mathieu Valbuena, Bolo Zenden, and Hatem Ben Arfa.

On 30 June 2011, after spending a season playing with Le Mans in the second division, Corchia returned to Ligue 1 joining Sochaux on a four-year contract.

With the under-17 team, Corchia made his debut in a 2–1 friendly defeat to the Czech Republic appearing as a substitute in the second half for Julien Berthomier.

Corchia was a key participant in the under-19 team that qualified for the 2009 UEFA European Under-19 Football Championship and was named to the tournament playing the full 90 minutes in the squad's opening 1–1 draw with Serbia.

He played in all four of the squad's matches including the semi-final, where they suffered elimination losing 1–3 in extra time to England with Corchia receiving a red card.

On 25 August 2016, Corchia was called up to the senior squad for the first time for a friendly against Italy and a 2018 FIFA World Cup qualification against Belarus.

[23] Corchia made his debut on 15 November against Ivory Coast, replacing Djibril Sidibé for the final 21 minutes of a 0–0 home draw.