| Ryūsei Satō | |
| Position: | Infielder |
| Team: | Saitama Seibu Lions |
| Number: | 10 |
| Bats: | Right |
| Throws: | Right |
| Birth Date: | 15 January 1997 |
| Birth Place: | Akkeshi, Hokkaido, Japan |
| Debutleague: | NPB |
| Debutdate: | March 29 |
| Debutyear: | 2019 |
| Debutteam: | Saitama Seibu Lions |
| Statleague: | NPB |
| Statyear: | 2023 season |
| Stat1label: | Batting average |
| Stat1value: | .216 |
| Stat2label: | Hits |
| Stat2value: | 104 |
| Stat3label: | Home runs |
| Stat3value: | 6 |
| Stat4label: | Runs batted in |
| Stat4value: | 33 |
| Stat5value: | 3 |
| Teams: |
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is a professional Japanese baseball player. He plays infielder for the Saitama Seibu Lions.[1] [2]