The 2026 Cincinnati Open was the 98th women's edition.
The combined tournament was staged from 13 to 23 August 2026 at the Lindner Family Tennis Center in Mason, Ohio. Its men's competition reached the 125th edition, while the women's competition reached the 98th.
The two edition counts differ because the men's tournament began in 1899, whereas the women's event has had a more interrupted history. The women's competition was absent in some periods, including 1974, and returned permanently to Cincinnati in the modern era in 2004. The 98th figure therefore refers specifically to completed women's editions, not to the tournament's overall age or the number of years since its founding.