| Mitsuhiro Adachi | |
| Position: | Pitcher |
| Bats: | Right |
| Throws: | Right |
| Birth Date: | 10 March 1940 |
| Birth Place: | Osaka, Japan |
| Debutyear: | 1959 |
| Debutteam: | Hankyu Braves |
| Finalyear: | 1979 |
| Finalteam: | Hankyu Braves |
| Stat1label: | Win–loss record |
| Stat1value: | 187-153 |
| Stat2label: | ERA |
| Stat2value: | 2.91 |
| Stat3label: | Strikeouts |
| Stat3value: | 1482 |
| Teams: |
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is a Japanese former baseball pitcher. Mitsuhiro played with the Hankyu Braves from 1959 to 1979. He won the Nippon Professional Baseball Most Valuable Player Award in the Pacific League in 1967.