| 1983 ATP Championship | |
|---|---|
| Date | August 20–26 |
| Edition | 82nd |
| Category | Grand Prix circuit |
| Draw | 64S / 32D |
| Prize money | $300,000 |
| Surface | Hard / outdoor |
| Location | Mason, Ohio, US |
| Venue | Lindner Family Tennis Center |
| Champions | |
| Singles | |
 Mats Wilander | |
| Doubles | |
 Victor Amaya / Tim Gullikson | |
The 1983 ATP Championship, also known as the Cincinnati Open, was a men's tennis tournament played on outdoor hardcourt|s at the Lindner Family Tennis Center in Mason, Ohio in the United States that was part of the 1983 Volvo Grand Prix. The tournament was held from August 20 through August 26, 1983. Fourth-seeded Mats Wilander won the singles title.
