| Ekaterina Efimova | |
| Nationality: | Russian |
| Birth Date: | 3 July 1993 |
| Height: | 1.92 m |
| Weight: | 70 kg |
| Spike: | 305 cm |
| Block: | 292 cm |
| Position: | Middle-blocker |
| Currentclub: | Beşiktaş Ayos |
| Currentnumber: | 13 |
| Nationalyears: | 2015–present |
| Nationalteam: | Russia |
Ekaterina Olegovna Efimova (Russian: Екатерина Олеговна Ефимова; born 3 July 1993) is a Russian volleyball player for Beşiktaş Ayos and the Russian national team.
She participated at the 2017 Women's European Volleyball Championship.[1] and 2018 FIVB Volleyball Women's Nations League.[2]
Zarechye Odintsovo (2014–2015) Omichka Omsk (oct 2015–dec 2015) Dinamo Krasnodar (2015–2016) Yenisey Krasnoyarsk (2016–2018) WVC Dynamo Moscow (2018–2021) Leningradka Saint Petersburg (2021–2023)
Beşiktaş Ayos (2023–)