The Prince Chichibu Memorial Rugby Ground is a prominent rugby stadium located in Tokyo, Japan. Opened in 1947, it serves as the home ground for the Japan national rugby union team and hosts various domestic and international rugby matches. The stadium is named after Prince Chichibu, who was an avid supporter of rugby in Japan. With a seating capacity of approximately 25,000, the ground features a natural grass pitch and modern facilities for players and fans. It has been a venue for significant events, including the Rugby World Cup, showcasing the growing popularity of rugby in the country.