| 1990 U.S. Men's Clay Court Championships | |
|---|---|
| Date | May 7–14 |
| Edition | 22nd |
| Category | ATP World Series |
| Draw | 32S / 16D |
| Prize money | $197,000 |
| Surface | Clay / outdoor |
| Location | Kiawah Island, SC, U.S. |
| Champions | |
| Singles | |
| | |
| Doubles | |
| | |
The 1990 U.S. Men's Clay Court Championships was an Association of Tennis Professionals men's tennis tournament held in Kiawah Island, South Carolina in the United States. It was the 22nd edition of the tournament and was held from May 7 to May 14, 1990. Third-seeded David Wheaton won the singles title.
David Wheaton defeated
Mark Kaplan 6–4, 6–4
Scott Davis /
David Pate defeated
Jim Grabb /
Leonardo Lavalle 6–2, 6–3