2018 Western & Southern Open
| 2018 Western & Southern Open | |
|---|---|
| Date | August 13–19 |
| Edition | 117th (men) / 90th (women) |
| Category | ATP World Tour Masters 1000 (men) WTA Premier 5 (women) |
| Surface | Hard |
| Location | Mason, Ohio, United States |
| Venue | Lindner Family Tennis Center |
| Champions | |
| Men's singles | |
| Novak Djokovic | |
| Women's singles | |
| Kiki Bertens | |
| Men's doubles | |
| Jamie Murray / Bruno Soares | |
| Women's doubles | |
| Lucie Hradecká / Ekaterina Makarova | |
The 2018 Western & Southern Open was a men's and women's tennis tournament played on outdoor hard courts from August 13–19, 2018. It took place at the Lindner Family Tennis Center in Mason, Ohio, a northern suburb of Cincinnati, in the United States. It was a Masters 1000 tournament on the 2018 ATP World Tour and a WTA Premier 5 tournament on the 2018 WTA Tour. The tournament was one of two headline events in the 2018 US Open Series. The 2018 tournament was the 117th men's edition and the 90th women's edition of the Cincinnati Open.