The 2009 GP Ouest-France was a one-day road race which took place on 23 August 2009 in Plouay, France.

The race was held over 229 kilometres (142 mi), which is 12 laps of a circuit.

2009 was the fifth time that the race has been part of the UCI ProTour, but the race can be dated back to 1931 at its present location.

Frenchman Pierrick Fédrigo came in second, with Paul Martens of Germany coming in third.

Gerrans won a sprint from a five-man breakaway group which also included Anthony Roux of France and Dan Martin of Ireland.