1989 U.S. Men's Clay Court Championships
Date	May 8–15
Edition	21st
Category	Grand Prix
Draw	32S / 16D
Prize money	$190,000
Surface	Clay / outdoor
Location	Charleston, South Carolina, U.S.
Champions
Singles
Jay Berger[1]
Doubles
Mikael Pernfors / Tobias Svantesson[2]
← 1988 · U.S. Men's Clay Court Championships · 1990 →

The 1989 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 21st edition of the tournament and was held from May 8 to May 15, 1989. Sixth-seeded Jay Berger won the singles title.

Jay Berger defeated Lawson Duncan 6–4, 6–3

• It was Berger's only title of the year and the 4th of his career.

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.

• Association of Tennis Professionals (ATP) – tournament profile