| 1977 Cincinnati Open | |
|---|---|
| Date | August 11 – August 18 |
| Edition | 77th |
| Category | Grand Prix Circuit (Three star) |
| Draw | 64S / 32D |
| Prize money | $100,000 |
| Surface | Clay / Outdoor |
| Location | Cincinnati, Ohio, USA |
| Venue | Coney Island |
| Champions | |
| Singles | |
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| Doubles | |
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The 1977 Cincinnati Open was a tennis tournament played on outdoor clay courts at the Coney Island in Cincinnati, Ohio in the United States that was part of the 1977 Colgate-Palmolive Grand Prix. The tournament was held from August 11 through August 18, 1977. Harold Solomon won the singles title.
Harold Solomon defeated
Mark Cox 6–2, 6–3
John Alexander /
Phil Dent defeated
Bob Hewitt /
Roscoe Tanner 6–3, 7–6