| 2023 San Diego Open | |
|---|---|
| Date | 11–16 September | 
| Edition | 37th (2nd as WTA 500 event) | 
| Category | WTA 500 | 
| Draw | 28S / 16D | 
| Prize money | $780,637 | 
| Surface | Hard | 
| Location | San Diego, United States | 
| Venue | Barnes Tennis Center | 
| Champions | |
| Singles | |
|   | |
| Doubles | |
|   | |
The 2023 San Diego Open (also known as the Cymbiotika San Diego Open presented by ResMed for sponsorship reasons) was a women's tennis tournament played on outdoor hard courts. It was the 2nd edition of the women's event, which is a WTA 500 event on the 2023 WTA Tour. It was held at the Barnes Tennis Center in San Diego, United States, from 11 to 16 September 2023. [1] [2] The men's event was discontinued this year following the return of the ATP Tour to China.
| Country | Player | Rank1 | Seed | 
|---|---|---|---|
| Ons Jabeur | 5 | 1 | |
| Caroline Garcia | 7 | 2 | |
| Maria Sakkari | 8 | 3 | |
| Barbora Krejčíková | 12 | 4 | |
| Belinda Bencic | 13 | 5 | |
| Veronika Kudermetova | 16 | 6 | |
| Beatriz Haddad Maia | 19 | 7 | |
| Ekaterina Alexandrova | 20 | 8 | |
The following players received wildcards into the main draw:
The following players received entry from the qualifying draw:
| Country | Player | Country | Player | Rank1 | Seed | 
|---|---|---|---|---|---|
| Barbora Krejčíková | Kateřina Siniaková | 3 | 1 | ||
| Shuko Aoyama | Yang Zhaoxuan | 34 | 2 | ||
| Chan Hao-ching | Giuliana Olmos | 39 | 3 | ||
| Lyudmyla Kichenok | Jeļena Ostapenko | 50 | 4 | 
The following pair received a wildcard into the doubles main draw: