2003 Gerry Weber Open
| 2003 Gerry Weber Open | |
|---|---|
| Date | June 9 – June 15 |
| Edition | 11th |
| Category | International Series |
| Surface | Grass / Outdoor |
| Location | Halle, Germany |
| Venue | Gerry Weber Stadion |
| Champions | |
| Singles | |
 Roger Federer | |
| Doubles | |
 Jonas Björkman /  Todd Woodbridge | |
The 2003 Gerry Weber Open was a tennis tournament played on grass courts at the Gerry Weber Stadion in Halle, North Rhine-Westphalia in Germany and was part of the International Series of the 2003 ATP Tour. The tournament ran from June 9 through June 15, 2003.
Finals
Singles
Roger Federer defeated 
Nicolas Kiefer 6–1, 6–3
- It was Federer's 5th title of the year and the 13th of his career.
Doubles
Jonas Björkman / Todd Woodbridge defeated 
Martin Damm / Cyril Suk 6–3, 6–4
- It was Björkman's 1st title of the year and the 35th of his career. It was Woodbridge's 1st title of the year and the 77th of his career.