Grande-SyntheGrande-Synthe is a commune in the Nord department in the Nord-Pas de Calais region in northern France.It is the third-largest suburb of the city of Dunkerque and lies adjacent to it on the west.WWW Official Site𝕏 VilleGdeSyntheYT UCRcDpzYE2lPfttVYYogwXyAHistoryIn 1980, a large part of Petite-Synthe was detached from Dunkerque and included in Grande-Synthe.International relationsGrande-Synthe is twinned with: Suwałki in PolandPersonalitiesRemy Vercoutre, footballerLucas Pouille, tennis playerTransportGare de Grande-Synthe railway station.