Gilles Pargneaux (b. 24 March 1957 in Harcigny) is a French politician, Member of the European Parliament elected in the 2009 European election for the North-West constituency and leader of the PS federation in Lille. He is close to the leader of the PS, the Mayor of Lille Martine Aubry.
In 2009, the PS selected him to lead the PS list in the North-West constituency ahead of the 2009 European elections. His list won 18.09% and two seats, so he was elected to the European Parliament.