| Reo Yasunaga | |
| Fullname: | Reo Yasunaga |
| Birth Date: | 19 November 2000 |
| Birth Place: | Tokyo, Japan |
| Height: | 1.77 m |
| Position: | Midfielder |
| Currentclub: | Matsumoto Yamaga FC |
| Clubnumber: | 46 |
| Years1: | 2018–2022 |
| Caps1: | 60 |
| Goals1: | 2 |
| Clubs1: | Yokohama FC |
| Years2: | 2019 |
| Caps2: | 2 |
| Goals2: | 0 |
| Clubs2: | → Kataller Toyama (loan) |
| Club-Update: | 12 January 2024 @ 16:54 (AEST) |
| Nationalteam-Update: | 24 May 2019 |
| Years3: | 2022–2023 |
| Clubs3: | → Mito HollyHock (loan) |
| Caps3: | 23 |
| Goals3: | 0 |
| Years4: | 2023- |
| Clubs4: | Matsumoto Yamaga FC |
| Caps4: | 19 |
| Goals4: | 0 |
| Totalcaps: | 103 |
| Totalgoals: | 2 |
is a Japanese professional footballer who plays as a midfielder for Matsumoto Yamaga FC.
His father Sotaro is a former professional footballer, and a former manager of J3 League side SC Sagamihara.