| 1989 GTE U.S. Men's Hard Court Championships | |
|---|---|
| Date | August 7–13 |
| Edition | 2nd |
| Category | Grand Prix |
| Draw | 56S / 28D |
| Prize money | $300,000 |
| Surface | Hard / outdoor |
| Location | Indianapolis, IN, U.S. |
| Venue | Indianapolis Tennis Center |
| Champions | |
| Singles | |
 John McEnroe[1] | |
| Doubles | |
 Pieter Aldrich / Danie Visser[2] | |
The 1989 GTE U.S. Men's Hard Court Championships was a men's tennis tournament played on outdoor hard courts at the Indianapolis Tennis Center in Indianapolis, Indiana in the United States that was part of the 1989 Nabisco Grand Prix. It was the second edition of the tournament and was held from August 7 through August 13, 1989. Second-seeded John McEnroe won the singles title.
- ^ "1989 Indianapolis – Singles draw". Association of Tennis Professionals (ATP).
- ^ "1989 Indianapolis – Doubles draw". Association of Tennis Professionals (ATP).