| Natsuhiko Watanabe | |
| Height: | 1.70 m |
| Birth Date: | 1995 6, df=yes |
| Birth Place: | Tokyo, Japan |
| Position: | Forward |
| Youthclubs1: | Gekkouhara S.C. |
| Youthyears2: | –2011 |
| Youthclubs2: | FC Toripletta |
| Youthyears3: | 2011–2014 |
| Youthclubs3: | Kokugakuin University Kugayama HS |
| Youthyears4: | 2014–2018 |
| Youthclubs4: | Keio University |
| Years1: | 2018 |
| Clubs1: | VfR Aalen |
| Caps1: | 2 |
| Goals1: | 0 |
| Years2: | 2019–2020 |
| Clubs2: | FC Memmingen |
| Caps2: | 28 |
| Goals2: | 3 |
| Years3: | 2020–2023 |
| Clubs3: | FV Illertissen |
| Caps3: | 23 |
| Goals3: | 3 |
| Pcupdate: | 1 January 2024 |
is a Japanese footballer who plays as a forward.
Watanabe joined FC Memmingen in Germany on 1 January 2019.