| Hiroshi Tsubaki | |
| Fullname: | Hiroshi Tsubaki |
| Birth Date: | 18 May 1991 |
| Birth Place: | Tokyo, Japan |
| Height: | 1.73 m |
| Weight: | 62 kg |
| Currentteam: | Retired |
| Discipline: | Road |
| Role: | Rider |
| Amateuryears1: | 2010–2012 |
| Amateurteam1: | Bridgestone–Anchor U23 |
| Amateuryears2: | 2013 |
| Amateurteam2: | EQA U23 |
| Amateuryears3: | 2013 |
| Amateurteam3: | (stagiaire) |
| Proyears1: | 2014–2016 |
| Proyears2: | 2017–2020 |
| Proteam2: | [1] |
Hiroshi Tsubaki (born 18 May 1991) is a Japanese former professional cyclist, who rode professionally between 2014 and 2020 for and the . Since retiring from cycling, Tsubaki now works as a barista in a coffee shop in Inagi.