| 1988 U.S. Men's Clay Court Championships | |
|---|---|
| Date | April 25 – May 1 |
| Edition | 20th |
| Category | Grand Prix |
| Draw | 32S / 16D |
| Prize money | $190,000 |
| Surface | Clay / outdoor |
| Location | Charleston, South Carolina, U.S. |
| Champions | |
| Singles | |
| | |
| Doubles | |
| | |
The 1988 U.S. Men's Clay Court Championships was a Grand Prix men's tennis tournament held in Charleston, South Carolina in the United States. It was the 20th edition of the tournament and was held on outdoor clay courts from April 25 through May 1, 1988. First-seeded Andre Agassi won the singles title.
Andre Agassi defeated
Jimmy Arias 6–2, 6–2
Pieter Aldrich /
Danie Visser defeated
Jorge Lozano /
Todd Witsken 7–6, 6–3