| Affiliation ID | 4339 | |
|---|---|---|
| Full name | Saitama Seibu Lions | |
| Short name | Seibu Lions | |
| Place | Tokorozawa, Saitama | |
| Sports | Baseball |
| Chang Chih-Chia | BBL | Olympics | 2004—2008 | |
| Sosuke Genda | BBL | Olympics | 2020 | |
| Daisuke Matsuzaka | BBL | Olympics | 2000—2004 | |
| Hiroyuki Nakajima | BBL | Olympics | 2008 | |
| Takahiko Sato | BBL | Olympics | 2008 | |
| Kaima Taira | BBL | Olympics | 2020 | |
| Kazuhiro Wada | BBL | Olympics | 2004 | |
| Hideaki Wakui | BBL | Olympics | 2008 |