| Masakatsu Nishikawa | |
| Fullname: | Masakatsu Nishikawa |
| Birth Date: | 1987 5, df=yes |
| Birth Place: | Japan |
| Height: | 1.81m (05.94feet) |
| Weight: | 95kg (209lb) |
| Position: | Flanker |
| Currentclub: | Suntory Sungoliath |
| Years1: | 2011–present |
| Clubs1: | Suntory Sungoliath |
| Apps1: | 72 |
| Points1: | 30 |
| Years2: | 2019 |
| Apps2: | 1 |
| Points2: | 0 |
| Repyears1: | 2018 |
| Repteam1: | Japan |
| Repcaps1: | 3 |
| Reppoints1: | 0 |
| Clubupdate: | 21 February 2021 |
| Repupdate: | 21 February 2021 |
is a Japanese rugby union player who plays as a Flanker.[1] He currently plays for in Super Rugby and Suntory Sungoliath in Japan's domestic Top League.[2]