| Rintaro Tashima | |
| Birth Date: | 8 April 1997 |
| Birth Place: | Abiko, Japan |
| Position: | Midfielder |
| Currentclub: | Dinamo Zagreb II |
| Youthyears1: | 2007–2013 |
| Youthclubs1: | Mitsubishi Yowa |
| Youthyears2: | 2013–2014 |
| Youthclubs2: | A.C.B.B. |
| Youthyears3: | 2014–2015 |
| Youthclubs3: | Mitsubishi Yowa |
| Youthyears4: | 2015–2016 |
| Youthclubs4: | Keio University |
| Years1: | 2016–2017 |
| Caps1: | 3 |
| Goals1: | 0 |
| Years2: | 2017– |
| Caps2: | 6 |
| Goals2: | 0 |
| Pcupdate: | 16 July 2018 |
is a Japanese football player who last played for Dinamo Zagreb II.
He made his professional debut in the Eerste Divisie for VVV-Venlo on 24 February 2017 in a game against Achilles '29.[1]