| 2009 Open GDF Suez | |
|---|---|
| Date | 9–15 February |
| Edition | 17th |
| Category | Premier |
| Draw | 32S / 16D |
| Surface | Hard / indoor |
| Location | Paris, France |
| Venue | Stade Pierre de Coubertin |
| Champions | |
| Singles | |
 Amélie Mauresmo | |
| Doubles | |
 Cara Black /  Liezel Huber | |
The 2009 Open GDF Suez was a women's professional tennis tournament played on indoor hardcourts. It was the 17th edition of the Open GDF Suez (formerly known as the Open Gaz de France) and was a Premier tournament on the 2009 WTA Tour. It took place at Stade Pierre de Coubertin in Paris, France, from 9 February until 15 February 2009.
The top three seeds were Serena Williams, the 2009 Australian Open singles champion and twice the winner of this event, Jelena Janković, a former World No. 1, and Elena Dementieva, the 2008 Olympic gold medalist in singles and a 2009 Australian Open semifinalist. Agnieszka Radwańska, home favourite Alizé Cornet, Patty Schnyder, Anabel Medina Garrigues, and two-time champion Amélie Mauresmo also played this event.