| Masato Kobayashi | |
| Position: | Pitcher/Coach |
| Team: | Chunichi Dragons |
| Birth Date: | 21 August 1980 |
| Birth Place: | Tsumagoi, Gunma Prefecture |
| Bats: | Left |
| Throws: | Left |
| Debutleague: | NPB |
| Debutyear: | 2005 |
| Debutteam: | Chunichi Dragons |
| Statyear: | 2014 |
| Statleague: | NPB |
| Stat1label: | Win–loss record |
| Stat1value: | 13–7 |
| Stat2label: | ERA |
| Stat2value: | 3.19 |
| Stat3label: | Strikeouts |
| Stat3value: | 143 |
| Teams: | As player
As coach
|
Masato Kobayashi (小林 正人, born August 21, 1980) is a Japanese former professional baseball pitcher. Kobayashi played for the Chunichi Dragons in Japan's Nippon Professional Baseball from 2005 to 2014. He is currently a development coach for the Chunichi Dragons farm team.