M
- Ken Macha
- Tim Macintosh
- Bill Madlock
- Tadatoki Maeda
- Yukinaga Maeda
- Katsuhiko Maekawa
- Takahiro Mahara
- Charlie Manuel
- Bobby Marcano
- Jim Marshall
- Domingo Martínez
- Kazuo Matsui
- Hideki Matsui
- Takuya Matsumoto
- Daisuke Matsuzaka
- Darrell May
- Derrick May
- Scott McClain
- Dan Miceli
- Osamu Mihara
- Hensley Meulens
- Félix Millán
- Nathan Minchey
- Carlos Mirabal
- Koichi Misawa
- Bobby Mitchell
- Daisuke Miura
- Takashi Miwa
- Shinya Miyamoto
- Eiji Mizuguchi
- Shigeru Mizuhara
- Trey Moore
- Shinji Mori
- Masao Morinaka
- Daisuke Motoki
- Scott Mullen
- Masanori Murakami
- Arihito Muramatsu
- Choji Murata
- Shuichi Murata
- Minoru Murayama
Read more about this topic: List Of Japanese Baseball Players