| Rio Hyon | |
| Birth Date: | 30 December 2003 |
| Birth Place: | Hyōgo, Japan |
| Height: | 1.71 m |
| Currentclub: | Tochigi SC (on loan from Tokushima Vortis) |
| Clubnumber: | 14 |
| Position: | Midfielder |
| Youthclubs1: | Nishinomiya SS |
| Youthclubs2: | FC Libre |
| Youthyears3: | 2019–2021 |
| Youthclubs3: | Shizuoka Gakuen High School |
| Years1: | 2022– |
| Clubs1: | Tokushima Vortis |
| Caps1: | 33 |
| Goals1: | 0 |
| Club-Update: | 16:41, 7 January 2024 (UTC) |
| Years2: | 2024 |
| Clubs2: | Tochigi SC |
| Caps2: | 0 |
| Goals2: | 0 |
is a Japanese footballer of Korean descent currently playing as a midfielder for Tochigi SC on loan from Tokushima Vortis.
Hyon played for Nishinomiya SS, FC Libre and Shizuoka Gakuen High School in his youth, before signing for Tokushima Vortis.
Hyon made his league debut for Tokushima against Mito HollyHock on the 17 April 2022.[1] He was naturalized as a Japanese citizen in 2023.[2]
During the 2024 J2 League season, Hyon moved to Tochigi SC on loan.[3]
.