This was a regional NWA championship based in Japan.
For the version of this title that was promoted in NWA All Star Wrestling in Canada, see NWA International Tag Team Championship (Vancouver version).
The NWA International Tag Team Championship was a National Wrestling Alliance-sanctioned title contested in All Japan Pro Wrestling (AJPW) and Western States Sports.
Prior to being used in AJPW, the title was defended in the Japan Wrestling Association (JWA).
It is now part of the World Tag Team Championship, also known as the "Double Cup".