| Sotaro Shimauchi | |
| Position: | Pitcher |
| Team: | Hiroshima Toyo Carp |
| Number: | 43 |
| Bats: | Right |
| Throws: | Right |
| Birth Date: | 14 October 1996 |
| Birth Place: | Fukutsu, Fukuoka, Japan |
| Debutleague: | NPB |
| Debutdate: | March 30 |
| Debutyear: | 2019 |
| Debutteam: | Hiroshima Toyo Carp |
| Statyear: | 2023 season |
| Stat1label: | Win-loss record |
| Stat1value: | 4-8 |
| Stat2label: | Earned run average |
| Stat2value: | 3.41 |
| Stat3label: | Strikeouts |
| Stat3value: | 216 |
| Stat4label: | Saves |
| Stat4value: | 2 |
| Stat5label: | Holds |
| Stat5value: | 65 |
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is a professional Japanese baseball player. He is a pitcher for the Hiroshima Toyo Carp of Nippon Professional Baseball (NPB).[1]