Artemon Apostu-Efremov
| Country (sports) | Romania |
|---|---|
| Residence | Bucharest, Romania |
| Born | 19 June 1979 Bucharest, Socialist Republic of Romania |
| Turned pro | 1999 |
| Retired | 2016 |
| Plays | Right-handed (two-handed backhand) |
| Prize money | $55,070 |
| Singles | |
| Career record | 0–0 |
| Career titles | 0 |
| Highest ranking | No. 310 (15 April 2002) |
| Doubles | |
| Career record | 0–1 |
| Career titles | 0 |
| Highest ranking | No. 466 (17 February 2003) |
| Coaching career (2011–) | |
| Last updated on: August 16, 2017. | |
Artemon "Arti" Apostu-Efremov (born 19 June 1979) is a retired Romanian tennis player and currently a tennis coach. Since 2017 he is the coach of fellow Romanian Irina-Camelia Begu. On 15 April 2002, he reached his highest ATP singles ranking of World No. 310 whilst his best doubles ranking was World No. 466 on 17 February 2003. His plays are right-handed.
Apostu-Efremov made his ATP main draw debut at the 2002 Romanian Open in the doubles event partnering Răzvan Sabău.