NACK5 Stadium Omiya
| Former names | Omiya Football Stadium (1960–2007) |
|---|---|
| Location | Saitama, Japan |
| Coordinates | 35°54′59″N 139°38′00″E / 35.916303°N 139.633377°E |
| Public transit | Tobu Railway: TDTobu Urban Park Line at Omiya-Koen |
| Owner | Saitama City |
| Operator | Saitama City Park Association |
| Capacity | 15,491 |
| Field size | 105 x 68 m |
| Surface | Grass |
| Construction | |
| Opened | 1960 |
| Renovated | 1995 |
| Expanded | 2007 |
| Tenants | |
| RB Omiya Ardija | |
NACK5 Stadium Omiya (ナックファイブスタジアム大宮, Nakku-faibu Sutajiamu Ōmiya) is a football stadium located in Ōmiya-ku, Saitama, Japan. It is the home stadium of J2 League club RB Omiya Ardija.
It was formerly known as Omiya Football Stadium. Since 14 May 2007 it has been called NACK5 Stadium Omiya (ナックファイブスタジアム大宮, Nakku-faibu Sutajiamu Ōmiya) for the naming rights.