is a name given to championships or governing bodies that are based in Japan. It may also refer to:
Combat sport All Japan Pro Wrestling All Japan Women's Pro-Wrestling All Japan Kendo Federation All Japan Ju-Jitsu International Federation Federation of All Japan Karatedo Organization All-Japan Judo Championships All Japan Judo Federation
Football All Japan Senior Football Championship All Japan Women's Football Championship
Motorsport Cars All series below are organised or recognised by JAF (Japan Automobile Federation) All Japan Sports Prototype Championship All-Japan Formula Three Championship All-Japan Formula 3000 Championship (1987-1995), former name of Formula Nippon All-Japan Grand Touring Car Championship, former name of Super GT All-Japan Professional Drift Championship, former name of D1 Grand Prix All-Japan Touring Car Championship, alternative name of Japanese Touring Car Championship JRMCA All-Japan National Championship
Motorcycles All series are organized by MFJ (Motorcycle Federation of Japan) All Japan Road Race Championship
Misc All-Japan Band Association All-Japan Rugby Football Championship Kurowashiki All Japan Volleyball Tournament All Japan Yakiniku Association All-Japan Figure Skating Championships