| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
|
| O |
| Name | Country | Plays |
| Kyoka Okamura | Japan | Right Handed |
| Raluca Olaru | Romania | Right Handed |
| Giuliana Olmos | Mexico | Right Handed |
| Paula Ormaechea | Argentina | Right Handed |
| Mari Osaka | Japan | Right Handed |
| Naomi Osaka | Japan | Right Handed |
| Maria Camila Osorio Serrano | Colombia | Right Handed |
| Jelena Ostapenko | Latvia | Right Handed |
| Mavie Osterreicher | Austria | Left Handed |
| Whitney Osuigwe | United States | Right Handed |
| Ipek Oz | Turkey | Left Handed |
| Risa Ozaki | Japan | Right Handed |
| Pemra Ozgen | Turkey | Right Handed |
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