| 2006 Mercedes Cup | |
|---|---|
| Date | 17–23 July |
| Edition | 29th |
| Category | International Series Gold |
| Draw | 48S / 16D |
| Prize money | $665,000 |
| Surface | Clay / outdoor |
| Location | Stuttgart, Germany |
| Venue | Tennis Club Weissenhof |
| Champions | |
| Singles | |
 David Ferrer[1] | |
| Doubles | |
 Gastón Gaudio /  Max Mirnyi[2] | |
The 2006 Mercedes Cup was the 2006 edition of the Mercedes Cup men's tennis tournament and was part of the International Series Gold of the 2006 ATP Tour. It was the 29th edition of the tournament and was held from 17 until 23 July 2006 at the Tennis Club Weissenhof in Stuttgart, Germany. Third-seeded David Ferrer won his first title of the year, and second of his career.
- ^ "2006 Stuttgart Outdoor – Singles draw". Association of Tennis Professionals (ATP).
- ^ "2006 Stuttgart Outdoor – Doubles draw". Association of Tennis Professionals (ATP).