| Date: | July 30 – August 5 |
| Edition: | 4th |
| Category: | Grand Prix (Group C) |
| Prize Money: | $25,000 |
| Draw: | 32S / 16D |
| Surface: | Hard / outdoor |
| Location: | Grove City, Columbus, Ohio, United States |
| Venue: | Buckeye Boys Ranch |
| Champs: |  Jimmy Connors[1] |
| After Name: | City National Buckeye Championships |
| Main Name: | Columbus Open |
The 1973 Buckeye Tennis Championships was a men's tennis tournament played on outdoor hard courts at the Buckeye Boys Ranch in Grove City, Columbus, Ohio in the United States that was part of Group C of the 1973 Grand Prix circuit. It was the fourth edition of the tournament and was held from July 30 through August 5, 1973. First-seeded Jimmy Connors won his second consecutive singles title at the event and earned $5,000 first-prize money.[2]
Jimmy Connors defeated Charlie Pasarell 3–6, 6–3, 6–3
Gerald Battrick / Graham Stilwell defeated 
Colin Dibley / Charlie Pasarell 6–4, 7–6