| Yuki Nishiya 西谷 優希 | |
| Fullname: | Yuki Nishiya |
| Birth Date: | 5 October 1993 |
| Birth Place: | Tochigi, Japan |
| Position: | Midfielder |
| Currentclub: | Zweigen Kanazawa |
| Clubnumber: | 15 |
| Youthclubs1: | Sendai University |
| Years1: | 2017–2018 |
| Clubs1: | TuS Erndtebrück |
| Caps1: | 28 |
| Goals1: | 3 |
| Years2: | 2018–2023 |
| Clubs2: | Tochigi SC |
| Caps2: | 131 |
| Goals2: | 5 |
| Years3: | 2024– |
| Caps3: | 0 |
| Goals3: | 0 |
| Club-Update: | 21 August 2022 |
is a Japanese football player for Zweigen Kanazawa.
Nishiya was born in Tochigi Prefecture on October 5, 1993. After graduating from Sendai University, he joined J2 League club Tochigi SC in 2018.
He is the twin brother of Kazuki Nishiya, who currently plays for Tokushima Vortis.