| Daiki Tajima | |
| Position: | pitcher |
| Team: | Orix Buffaloes |
| Number: | 29 |
| Bats: | Left |
| Throws: | Left |
| Birth Date: | 3 August 1996 |
| Birth Place: | Utsunomiya, Tochigi, Japan |
| Debutdate: | March 31 |
| Debutyear: | 2018 |
| Debutteam: | Orix Buffaloes |
| Statyear: | 2022 season |
| Stat1label: | Win–loss record |
| Stat1value: | 30-24 |
| Stat2label: | Earned run average |
| Stat2value: | 3.52 |
| Stat3label: | Strikeouts |
| Stat3value: | 425 |
| Teams: |
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| Awards: | |
is a professional Japanese baseball player. He plays pitcher for the Orix Buffaloes.