| 2003 Siebel Open | |
|---|---|
| Date | February 10–16 |
| Edition | 115th |
| Category | International Series |
| Draw | 32S / 16D |
| Prize money | $355,000 |
| Surface | Hard / indoor |
| Location | San Jose, U.S. |
| Venue | HP Pavilion at San Jose |
| Champions | |
| Singles | |
 Andre Agassi[1] | |
| Doubles | |
 Hyung-Taik Lee /  Vladimir Voltchkov[2] | |
The 2003 Siebel Open was a men's tennis tournament played on indoor hard courts at the HP Pavilion at San Jose in San Jose, California in the United States that was part of the International Series of the 2003 ATP Tour. It was the 115th edition of the tournament and was held from February 10 through February 16, 2003. First-seeded Andre Agassi won the singles title.[3]
- ^ "2003 San Jose – Singles draw". Association of Tennis Professionals (ATP).
- ^ "2003 San Jose – Doubles draw". Association of Tennis Professionals (ATP).
- ^ "Amazing Agassi claims title". BBC Sport. February 18, 2003.