| Masaya Hagio | |
| Position: | Outfielder |
| Team: | Yomiuri Giants |
| Number: | 12 |
| Bats: | Right |
| Throws: | Right |
| Birth Date: | 28 December 2000 |
| Birth Place: | Kikuchi District, Kumamoto, Japan |
| Debutleague: | NPB |
| Debutdate: | May 28 |
| Debutyear: | 2023 |
| Debutteam: | Yomiuri Giants |
| Finalleague: | NPB |
| Statyear: | 2023 season |
| Statleague: | NPB |
| Stat1label: | Batting average |
| Stat1value: | .063 |
| Stat2label: | Home runs |
| Stat2value: | 0 |
| Stat3label: | RBI |
| Stat3value: | 0 |
| Stat4label: | Hits |
| Stat4value: | 1 |
| Stat5label: | Stolen base |
| Stat5value: | 0 |
| Stat6label: | Sacrifice bunt |
| Stat6value: | 0 |
| Teams: |
|
is a professional Japanese baseball player. He plays outfielder for the Yomiuri Giants.[1] [2]