2013 Western & Southern Open – Women's singles
| Women's singles | |
|---|---|
| 2013 Western & Southern Open | |
| Champion | Victoria Azarenka |
| Runner-up | Serena Williams |
| Score | 2–6, 6–2, 7–6(8–6) |
| Draw | 56 |
| Seeds | 16 |
Victoria Azarenka defeated Serena Williams in the final, 2–6, 6–2, 7–6(8–6) to win the women's singles tennis title at the 2013 Cincinnati Masters. It was Azarenka's second win against Williams during the year, and Williams' fourth and last loss of the year.
Li Na was the defending champion, but lost to Williams in the semifinals.
This marked the final professional appearance of reigning Wimbledon champion Marion Bartoli; she lost to Simona Halep in the second round.