| 2004 U.S. Men's Clay Court Championships | |
|---|---|
| Date | April 12–18 |
| Edition | 36th |
| Category | International Series |
| Draw | 32S / 16D |
| Prize money | $355,000 |
| Surface | Clay / outdoor |
| Location | Houston,Texas, U.S. |
| Venue | Westside Tennis Club |
| Champions | |
| Singles | |
 Tommy Haas[1] | |
| Doubles | |
 James Blake /Mardy Fish[2] | |
The2004 U.S. Men's Clay Court Championships was atennis tournament played onoutdoor clay courts at theWestside Tennis Club inHouston,Texas in the United States and was part of theInternational Series of the2004 ATP Tour. It was the 36th edition of the tournament and was held from April 12 through April 18, 2004.Tommy Haas won the singles title.
Tommy Haas defeatedAndy Roddick 6–3, 6–4
James Blake /Mardy Fish defeatedRick Leach /Brian MacPhie 6–3, 6–4