Coralie Balmy (born 8 June 1987) is a French freestyle swimmer.
Balmy was born in La Trinité, Martinique.
She won her first senior title at the 2008 European Aquatics Championships in Eindhoven in the 4×200 m relay freestyle.
At the same Championships she won the silver medal in the 400 m freestyle with the time of 4:04.15, all-time fourth fastest behind Federica Pellegrini's world record.
At the 2008 Summer Olympics in Beijing, she finished fourth in the 400 m freestyle final.
On December 6, 2008 she set the world record for the 200 m freestyle (short course) at the French National Championships in Angers, France in a time of 1:53.16.
At the 2012 Summer Olympics her 4 × 200 m freestyle team won the bronze medal in a time of 7:47.49.
The split times: Camille Muffat (1:55.51); Charlotte Bonnet (1:57.78); Ophélie-Cyrielle Étienne (1:58.05); Coralie Balmy (1:56.15). Achievements 2007: SC European Championships 3rd 200 m freestyle (1:54.43) 2008: LC European Championships 1st 4×200 m freestyle (7:52.09) 2nd 400 m freestyle (4:04.15)