| 2018 Volvo Car Open | |
|---|---|
| Date | April 2 – 8 |
| Edition | 46th |
| Category | WTA Premier |
| Draw | 56S / 16D |
| Prize money | $776,000 |
| Surface | Green clay |
| Location | Charleston, United States |
| Venue | Family Circle Tennis Center |
| Champions | |
| Singles | |
 Kiki Bertens | |
| Doubles | |
 Alla Kudryavtseva /  Katarina Srebotnik | |
The 2018 Volvo Car Open was a women's tennis event on the 2018 WTA Tour. It took place between April 2 – 8, 2018 and was the 46th edition of the Charleston Open tournament and a Premier level tournament. The event took place at the Family Circle Tennis Center, on Daniel Island, Charleston, United States. It was the only event of the clay court season played on green clay.