Ksenia Efremova
| Full name | Ksenia Alexeyevna Efremova |
|---|---|
| Country (sports) | France |
| Residence | Alpes-Maritimes, France |
| Born | 28 April 2009 Moscow, Russia |
| College | Mouratoglou Tennis Academy |
| Coach | Pierre Debrosse, Yulia Efremova |
| Prize money | US $46,982 |
| Singles | |
| Career record | 48–16 |
| Career titles | 4 ITF |
| Highest ranking | No. 575 (5 January 2026) |
| Current ranking | No. 590 (2 February 2026) |
| Grand Slam singles results | |
| Australian Open | Q1 (2026) |
| French Open | Q1 (2025) |
| Australian Open Junior | W (2026) |
| French Open Junior | 2R (2025) |
| Wimbledon Junior | 2R (2025) |
| US Open Junior | QF (2025) |
| Doubles | |
| Career record | 8–4 |
| Career titles | 1 ITF |
| Highest ranking | No. 1,344 (10 November 2025) |
| Current ranking | No. 1,359 (2 February 2026) |
| Grand Slam doubles results | |
| Australian Open Junior | 1R (2024) |
| French Open Junior | 1R (2025) |
| Wimbledon Junior | 1R (2025) |
| US Open Junior | 1R (2024, 2025) |
| Last updated on: 2 February 2026. | |
Ksenia Efremova (born 28 April 2009) is a French tennis player. She has a career-high WTA singles ranking of No. 575 achieved on 5 January 2026 and a doubles ranking of No. 1,344 reached on 10 November 2025.
Efremova won the girls' singles title at the 2026 Australian Open.