The Japan national rugby union team, also known as the Cherry Blossoms, Brave Blossoms, or simply Sakura, is traditionally the strongest rugby union power in Asia and has enjoyed and endured mixed results against non-Asian teams over the years. Rugby union in Japan is administered by the Japan Rugby Football Union (JRFU), which was founded in 1926. They compete annually in the Pacific Nations Cup and previously in the Asia Rugby Championship. They have also participated in every Rugby World Cup since the tournament began in 1987.

The Japan Rugby Football Union is the governing body for rugby union in Japan. It was formed 30 November 1926, and organises matches for the Japan national team.