The 1985 U.S. Men's Clay Court Championships was a men's Grand Prix tennis tournament held in Indianapolis in the United States and played on outdoor clay courts. It was the 17th edition of the tournament and was held from July 22 to July 29, 1985. Ivan Lendl won the singles title.
Ivan Lendl defeated Andrés Gómez 6–1, 6–3
- It was Lendl's 5th title of the year and the 47th of his career.
Ken Flach / Robert Seguso defeated Pavel Složil / Kim Warwick 6–4, 6–4