RB Omiya Ardija
| Full name | RB Ōmiya Ardija | ||
|---|---|---|---|
| Nickname(s) | Reddoburu (Red Bull) | ||
| Founded | 1969 as NTT Kantō SC | ||
| Stadium | NACK5 Stadium Ōmiya Omiya-ku, Saitama, Saitama | ||
| Capacity | 15,491 | ||
| Owner | Red Bull GmbH | ||
| Chairman | Masashi Mori | ||
| Manager | Tetsu Nagasawa | ||
| League | J2 League | ||
| 2024 | J3 League, 1st of 20 (promoted) | ||
| Website | www | ||
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RB Ōmiya Ardija (RB大宮アルディージャ, Arubi Ōmiya Arudīja) is a Japanese professional association football club based in Ōmiya, Saitama Prefecture. Its "hometown" (as designated by the league) is shared with neighbours Urawa Red Diamonds. The team currently play in J2 League, the Japanese second tier of professional football, after promotion from the third tier in 2024.
The club was known as Ōmiya Ardija (大宮アルディージャ, Ōmiya Arudīja), before club administration was taken over by Red Bull GmbH in late November 2024 who renamed the club.