Rei Sakamoto
| Country (sports) | Japan |
|---|---|
| Born | 24 June 2006 Nagoya, Japan |
| Height | 1.93 m (6 ft 4 in) |
| Plays | Right-handed (two-handed backhand) |
| Coach | Federico Ricci |
| Prize money | US $367,875 |
| Singles | |
| Career record | 0–4 (at ATP Tour level, Grand Slam level, and in Davis Cup) |
| Career titles | 0 |
| Highest ranking | No. 157 (23 February 2026) |
| Current ranking | No. 159 (2 March 2026) |
| Grand Slam singles results | |
| Australian Open | 1R (2026) |
| US Open | Q2 (2025) |
| Doubles | |
| Career record | 0–2 (at ATP Tour level, Grand Slam level, and in Davis Cup) |
| Career titles | 0 |
| Highest ranking | No. 750 (23 February 2026) |
| Current ranking | No. 750 (23 February 2026) |
| Last updated on: 2 March 2026. | |
Rei Sakamoto (坂本怜, Sakamoto Rei; born 24 June 2006) is a Japanese professional tennis player. He has a career-high ATP singles ranking of No. 157 achieved on 23 February 2026 and a doubles ranking of No. 750 reached on 23 February 2026. He is currently the No. 3 singles player from Japan.
Sakamoto has won three singles titles on ATP Challenger Tour. He represents Japan at the Davis Cup.