| 2018 Open Sud de France | |
|---|---|
| Date | 5–11 February 2018 |
| Edition | 31st |
| Draw | 28S / 16D |
| Prize money | €482,060 |
| Surface | Hard (Indoor) |
| Location | Montpellier, France |
| Venue | Arena Montpellier |
| Champions | |
| Singles | |
 Lucas Pouille | |
| Doubles | |
 Ken Skupski / Neal Skupski | |
The 2018 Open Sud de France was a men's tennis tournament played on indoor hard courts. It was the 31st edition of the Open Sud de France, and part of the ATP World Tour 250 Series of the 2018 ATP World Tour. It took placed at the Arena Montpellier in Montpellier, France, from February 5 to February 11, 2018.