| Yoichi Motoyasu | |
| Birth Date: | 9 June 1981 |
| Nationality: | Japanese |
| Position: | Head coach |
| Highschool: | Tokuyama (Tokuyama, Yamaguchi) |
| College: | Waseda University (2001-2010) |
| Coach Start: | 2009 |
| Cyears1: | 2009–2012 |
| Cteam1: | Tokio Marine Nichido Big Blue (asst.) |
| Cyears2: | 2012–2014 |
| Cteam2: | Tokyo Cinq Rêves (asst.) |
| Cyears3: | 2014–2015 |
| Cteam3: | Akita Northern Happinets (asst.) |
| Cyears4: | 2015–2016 |
| Cteam4: | Osaka Evessa (asst.) |
| Cyears5: | 2018-2019 |
| Cteam5: | Tryhoop Okayama |
is a former professional basketball assistant coach for Tokio, Akita, and Osaka in Japan.[1]