| Olga Efimova | |
| Nationality: | Russian |
| Birth Date: | 6 January 1990 |
| Height: | 1.81 m |
| Weight: | 68 kg |
| Spike: | 291 cm |
| Block: | 273 cm |
| Position: | Outside hitter |
| Years: | 2015 |
| Teams: | VC Zarechie Odintsovo |
| Nationalyears: | 2015– |
| Nationalteam: | Russia |
Olga Efimova (born 6 January 1990) is a Russian volleyball player, who plays as an outside hitter.
She is a member of the Russia women's national volleyball team and participated at the 2015 FIVB Volleyball Women's World Cup in Japan.[1] At club level she played for VC Zarechie Odintsovo in 2015.