| Yudai Yamamoto | |
| Fullname: | Yudai Yamamoto |
| Birth Date: | 4 March 1983[1] |
| Birth Place: | Japan[2] |
| League1: | J. League Division 1 |
| Role1: | Referee |
| Internationalyears1: | 2011 - |
| Confederation1: | FIFA listed |
| Internationalrole1: | Referee |
is a Japanese professional football referee.[3] He has been a full international for FIFA since 2011.[4] He refereed some matches in AFC Champions League.