is a judo tournament held every year in Japan. The men's tournament is held in Nippon Budokan on 29 April and the women's tournament (dubbed "Empress cup All-Japan women's Judo championships") is held in Yokohama Cultural Gymnasium in April. The Kodokan and All Japan Judo Federation sponsor the championship.
This tournament has only one open-weight division. Weight distinction is held as and particularly.
To Japanese judoka, it is one of the three major judo competitions, next to the judo events at the Summer Olympic Games and World Championships. Since 2011 All Japan Judo Championship is fought with International rules.