I
- Hirokazu Ibata
- Akihito Igarashi
- Ryota Igarashi
- Kei Igawa
- Tadahito Iguchi
- Takehiro Ikeyama
- Toshiaki Imae
- Makoto Imaoka
- Kazuhisa Inao
- Hideki Irabu
- Yusaku Iriki
- Hiromichi Ishige
- Hirotoshi Ishii
- Kazuhisa Ishii
- Takuro Ishii
- Tomohito Ito
- Tsutomu Ito
- Hisashi Iwakuma
- Yoshiyuki Iwamoto
- Akinori Iwamura
- Hitoki Iwase
Read more about this topic: List Of Japanese Baseball Players