Olympique Grande-Synthe Football (commonly referred to as OGS or simply Grande-Synthe) is a French football club based in Grande-Synthe in the Nord-Pas-de-Calais region. The club plays in the Régional 1, the sixth tier of French football, after being relegated from 2019–20 Championnat National 3.

History

The club was founded in 1963 and is a part of a sports club that consists of several other sports. The club is known for being the starting point for the careers of goalkeeper Rémy Vercoutre, centre back José-Karl Pierre-Fanfan, and midfielder Geoffrey Dernis.