| Ryōsuke Tatsumi | |
| Position: | Outfielder |
| Team: | Tohoku Rakuten Golden Eagles |
| Number: | 8 |
| Bats: | Left |
| Throws: | Right |
| Birth Date: | 27 December 1996 |
| Birth Place: | Kobe, Hyōgo, Japan |
| Debutleague: | NPB |
| Debutdate: | March 30 |
| Debutyear: | 2019 |
| Debutteam: | Tohoku Rakuten Golden Eagles |
| Statleague: | NPB |
| Statyear: | 2023 season |
| Stat1label: | Batting average |
| Stat1value: | .245 |
| Stat2label: | Hits |
| Stat2value: | 437 |
| Stat3label: | Home runs |
| Stat3value: | 42 |
| Stat4label: | Runs batted in |
| Stat4value: | 163 |
| Stat5value: | 55 |
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is a Japanese professional baseball outfielder for the Tohoku Rakuten Golden Eagles of Nippon Professional Baseball (NPB).[1] [2]