| Date: | 04-10 August |
| Edition: | 13 |
| Location: | Centro Nacional de Tenis |
| Multi: | yes |
| Before Year: | 1999 |
| After Year: | 2007 |
Tennis at the 2003 Pan American Games was played at the Centro Nacional de Tenis.
| Event: | Gold | Silver | Bronze |
| Men | |||
| Men's singles | |||
| Men's doubles | |||
| Women | |||
| Women's singles | |||
| Women's doubles | |||
| width=50 | Place | width=200 | Nation | width=50 | width=50 | width=50 | width=50 | Total | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  Brazil | 2 | 0 | 0 | 2 | ||||||
| 2 |  Mexico | 1 | 0 | 1 | 2 | ||||||
| 3 |  Venezuela | 1 | 0 | 1 | 2 | ||||||
| 4 | Chile | 0 | 2 | 0 | 2 | ||||||
| 5 |  United States | 0 | 1 | 3 | 4 | ||||||
| 6 | Puerto Rico | 0 | 1 | 1 | 2 | ||||||
| 7 |  Argentina | 0 | 0 | 1 | 1 | ||||||
| 8 |  Cuba | 0 | 0 | 1 | 1 | ||||||
| Total | 4 | 4 | 8 | 12 | |||||||