2025 Japan Open Tennis Championships
| 2025 Japan Open Tennis Championships | |
|---|---|
| Date | 24–30 September |
| Edition | 51st |
| Category | ATP 500 |
| Draw | 32S/16D |
| Surface | Hard / outdoor |
| Location | Tokyo, Japan |
| Venue | Ariake Coliseum |
| Champions | |
| Singles | |
| Carlos Alcaraz | |
| Doubles | |
| Hugo Nys / Édouard Roger-Vasselin | |
The 2025 Kinoshita Group Japan Open was a men's tennis tournament played on outdoor hardcourts. It was the 51st edition of the Japan Open, and an ATP 500 tournament on the 2025 ATP Tour. It was held at the Ariake Coliseum in Tokyo, Japan, from 24 to 30 September 2025.