Yelena Nikolayevna Arzhakova (Russian: Елена Николаевна Аржакова; born September 8, 1989) is a Russian runner who specializes in the middle distance events.
| Year | Competition | Venue | Position | Event | Notes |
|---|---|---|---|---|---|
| Representing Russia | |||||
| 2011 | European Indoor Championships | Paris, France | 1st | 1500 m | 4:13.78 |
| European U23 Championships | Ostrava, Czech Republic | 1st | 800 m | 1:59.41 (PB) | |
| Universiade | Shenzhen, China | 4th | 1500 m | 4:07.69 (PB) | |