2003 U.S. Men's Clay Court Championships – Doubles
| Doubles | |
|---|---|
| 2003 U.S. Men's Clay Court Championships | |
| Champions |
 Mark Knowles Daniel Nestor
|
| Runners-up |
 Jan-Michael Gambill Graydon Oliver
|
| Final score | 6–4, 6–3 |
Mardy Fish and Andy Roddick were the defending champions but lost in the semifinals to Mark Knowles and Daniel Nestor.
Knowles and Nestor won in the final 6–4, 6–3 against Jan-Michael Gambill and Graydon Oliver.
Champion seeds are indicated in bold text while text in italics indicates the round in which those seeds were eliminated.
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