- Address: 2135 Kami-Yamaguchi, Tokorozawa
- Country: Japan
- Capacity: 33,000
- Opened: 14 April 1979
- Main use: Baseball
- Tenants: Saitama Seibu Lions (baseball)
Extra stadium info – MetLife Dome
The stadium opened in 1979 as the Seibu Lions Stadium. The Saitama Seibu Lions baseball club became one of the first Japanese baseball clubs with 100,000 followers on its main social media page.