| Ryutaro Onodera | |
| Width: | 250px |
| League: | B.League |
| Team: | Levanga Hokkaido |
| Position: | Head coach |
| Birth Date: | 9 December 1981 |
| Birth Place: | Kesennuma, Miyagi, Japan |
| Nationality: | Japanese |
| High School: | Kesennuma Nishi (Kesennuma, Miyagi) |
| Career Start: | 2001 |
| Career End: | 2004 |
| Years1: | 2001-2003 |
| Team1: | Saitama Broncos |
| Years2: | 2003-2004 |
| Team2: | Broncos Club |
| Cyears1: | 2013 |
| Cyears2: | 2013-2014 |
| Cteam2: | Saitama Broncos (asst) |
| Cyears3: | 2014-2015 |
| Cyears4: | 2015-2016 |
| Cteam4: | Saitama Broncos |
| Cyears5: | 2016-2018 |
| Cteam5: | Shinshu Brave Warriors |
| Cyears6: | 2018-2019 |
| Cteam6: | Passlab Yamagata Wyverns |
| Cyears7: | 2019-2020 |
| Cteam7: | Shimane Susanoo Magic (asst) |
| Cyears8: | 2020-present |
| Cteam8: | Levanga Hokkaido (asst) |
is the Head coach of the Levanga Hokkaido in the Japanese B.League.[1]
|- | style="text-align:left;"|Bambitious Nara| style="text-align:left;"|2014-15| 52||12||40|||| style="text-align:center;"|10th in Western|||-||-||-||| style="text-align:center;"|-|-| style="text-align:left;"|Saitama Broncos| style="text-align:left;"|2015-16| 52||5||47|||| style="text-align:center;"|11th in Eastern|||-||-||-||| style="text-align:center;"|-|-| style="text-align:left;"|Shinshu Brave Warriors| style="text-align:left;"|2016-17| 60||14||46|||| style="text-align:center;"|6th in B2 Central|||-||-||-||| style="text-align:center;"|-|-| style="text-align:left;"|Shinshu Brave Warriors| style="text-align:left;"|2017-18| 60||25||35|||| style="text-align:center;"|5th in B2 Central|||-||-||-||| style="text-align:center;"|-|-| style="text-align:left;"|Yamagata Wyverns| style="text-align:left;"|2018-19| 60||22||38|||| style="text-align:center;"|5th in B2 Eastern|||-||-||-||| style="text-align:center;"|-