The 2015 Première ligue de soccer du Québec season is the fourth season of play for the Première ligue de soccer du Québec; the highest level of soccer based in the Canadian province of Québec and one of two Division 3 semi-professional soccer leagues in the Canadian soccer pyramid (the other being League1 Ontario). The season began on 2 May 2015 and ended on 18 October 2015, with the cup final taking place on 24 October 2015. CS Longueuil was the defending champion from 2014. CS Mont-Royal Outremont won the League championship.