Kumagaya Rugby Stadium (熊谷ラグビー場), is a rugby stadium in Kumagaya, Saitama, Japan. It is currently used mostly for rugby union matches. The stadium was built in 1991 and renovated between 2016 and
2018. Its capacity expanded from 20,000 (10,000 seated) to 24,000 people (fully seated). The stadium is part of a larger sports complex which includes the Kumagaya Athletic Stadium, a smaller
athletics stadium and a large arena. The complex is located in the Kumagaya Park.