| Mizuki Oya 大矢 瑞樹 | |
| Birth Date: | 1 March 2004 |
| Height: | 1.69 m |
| Position: | Forward |
| Youthyears1: | –2021 |
| Youthclubs1: | Albirex Niigata |
| Years1: | 2021 |
| Caps1: | 0 |
| Goals1: | 0 |
| Club-Update: | 17:04, 9 June 2021 (UTC) |
is a Japanese footballer who plays as a forward.
Oya made his professional debut in a 4–1 Emperor's Cup match against Zweigen Kanazawa.[1]