1989 U.S. Men's Clay Court Championships
| 1989 U.S. Men's Clay Court Championships | |
|---|---|
| Date | May 8–15 |
| Edition | 21st |
| Category | Grand Prix |
| Surface | Clay / outdoor |
| Location | Charleston, South Carolina |
| Champions | |
| Singles | |
 Jay Berger | |
| Doubles | |
 Mikael Pernfors / Tobias Svantesson | |
The 1989 U.S. Men's Clay Court Championships was a Grand Prix tennis tournament held in Charleston, South Carolina in the United States. The tournament was held from May 8 to May 15.
Finals
Singles
Jay Berger defeated Lawson Duncan 6–4, 6–3
- It was Berger's only title of the year and the 4th of his career.
Doubles
Mikael Pernfors / Tobias Svantesson defeated 
Agustín Moreno / 
Jaime Yzaga 6–4, 4–6, 7–5
- It was Pernfors's only title of the year and the 3rd of his career. It was Svantesson's 1st title of the year and the 1st of his career.