| 2014 Rakuten Japan Open Tennis Championships | |
|---|---|
| Date | 29 September – 5 October |
| Edition | 41st |
| Category | ATP World Tour 500 |
| Surface | Hard / outdoor |
| Location | Tokyo, Japan |
| Champions | |
| Singles | |
 Kei Nishikori | |
| Doubles | |
 Pierre-Hugues Herbert /  Michał Przysiężny | |
The 2014 Rakuten Japan Open Tennis Championships was a men's tennis tournament played on outdoor hard courts. It was the 41st edition of the event known this year as the Rakuten Japan Open Tennis Championships, and part of the 500 Series of the 2014 ATP World Tour. It was held at the Ariake Coliseum in Tokyo, Japan, from September 29 till October 5, 2014.