| Masahito Ono 小野 雅史 | |
| Fullname: | Masahito Ono |
| Birth Date: | 9 August 1996 |
| Birth Place: | Saitama, Japan |
| Height: | 172 cm |
| Position: | Midfielder |
| Currentclub: | Nagoya Grampus |
| Clubnumber: | 41 |
| Youthclubs1: | Kashiwa Eagles TOR'82 |
| Youthyears2: | –2014 |
| Youthclubs2: | Omiya Ardija |
| Collegeyears1: | 2015–2018 |
| College1: | Meiji University |
| Years1: | 2019–2022 |
| Caps1: | 107 |
| Goals1: | 6 |
| Clubs1: | Omiya Ardija |
| Years2: | 2023 |
| Caps2: | 39 |
| Goals2: | 0 |
| Clubs2: | Montedio Yamagata |
| Years3: | 2024– |
| Caps3: | 1 |
| Goals3: | 0 |
| Clubs3: | Nagoya Grampus |
| Club-Update: | 13 December 2023 |
| Nationalteam-Update: | 23 May 2019 |
, is a Japanese professional footballer who plays as a midfielder for club Nagoya Grampus.[1]