The IWGP Tag Team Championship is a professional wrestling world tag team championship owned by the New Japan Pro-Wrestling (NJPW) promotion. "IWGP" is the acronym of the NJPW's governing body, the International Wrestling Grand Prix . The title was introduced on December 12, 1985 at an NJPW live event. The IWGP Tag Team Championship is one of two weight-specific tag team titles contested for in NJPW; the IWGP Junior Heavyweight Tag Team Championship is also sanctioned by NJPW. According to NJPW's official website, the IWGP Tag Team Championship is considered the "IWGP Heavyweight [Tag] Class", while the Junior Heavyweight Tag Team Championship is listed as the "IWGP Jr. Tag Class". The current champions are Knock Out Brothers, who are in their first reign as a team and individually. They won the titles by defeating Taichi and Tomohiro Ishii at Destruction in Kobe on September 28, 2025, in Kobe, Japan.