Japan Vajra Group
- Country: Japan
- Type: Commercial
- Website: www.kongogumi.co.jp
- Update: 05-02
Kongō Gumi (株式会社金剛組; Kongō Gumi) is a Japanese architectural firm headquartered in Osaka, founded in 578, and is one of the world's oldest surviving companies in the business of designing, constructing and maintaining temples.
