Lamine Gassama (born 20 October 1989) is a Senegalese professional footballer who plays as a right back for Turkish club Göztepe and the Senegal national team.
Gassama grew up in the neighbourhood of La Castellane in the city of Marseille. He began his career playing for FC Martigues, just north of his hometown. After spending two years in the youth system, he returned to Marseille and joined local club Aubagne FC. There, he caught the attention of Olympique Lyonnais and joined the club's academy the following year.
Before the start of the 2008–09 season, Gassama was promoted to the first-team squad participating in Lyon's pre-season tour. He appeared in all five matches including starts against Nîmes Olympique, Rapid Bucureşti, and AS Nancy. On 2 September 2008, it was announced by Lyon that Gassama had signed a professional contract keeping him with the champions until 2011. He made his professional football debut on 29 October 2008 against FC Sochaux-Montbéliard starting in the right back position. The match resulted in a 2–0 victory with Gassama playing the full 90 minutes.