| Mamoru Harada | |
| Fullname: | Mamoru Harada |
| Birth Date: | 1999 4, df=yes |
| Birth Place: | Japan |
| Height: | 1.75m (05.74feet) |
| Weight: | 101kg (223lb) |
| Position: | Hooker |
| Currentclub: | Toshiba Brave Lupus Tokyo |
| Years1: | 2020 |
| Apps1: | 0 |
| Points1: | 0 |
| Years2: | 2022– |
| Apps2: | 2 |
| Points2: | 0 |
| Repyears1: | 2019 |
| Repteam1: | Japan U20 |
| Repcaps1: | 7 |
| Reppoints1: | 10 |
| Clubupdate: | 1 June 2022 |
| Repupdate: | 1 June 2022 |
is a Japanese rugby union player who plays as a hooker. He currently plays for Toshiba Brave Lupus Tokyo in Japan's domestic Japan Rugby League One.[1] [2] He was signed to the Sunwolves squad for the 2020 Super Rugby season, but did not make an appearance for the side.[3] [4]