Go Shiozaki is a Japanese professional wrestler currently signed to Pro Wrestling Noah. He is a record-holding five time former GHC Heavyweight Champion. He made his debut for the Pro Wrestling Noah in July 2004 and initially remained with Pro Wrestling Noah until the end of 2012 when he jumped to All Japan Pro Wrestling (AJPW). In AJPW, he became a one-time Triple Crown Heavyweight Champion and a two-time World Tag Team Champion, before resigning from the promotion in September 2015. Afterwards, he returned to Noah, where, in May 2016, he won the GHC Heavyweight Championship for the third time. He has also worked for American promotions Ring of Honor (ROH) and Full Impact Pro (FIP), winning the latter's World Heavyweight Championship. In August 2016, Shiozaki was appointed the chairman of Noah's wrestlers' association.

Pro Wrestling Noah is a Japanese professional wrestling promotion, founded in 2000 by former All Japan Pro Wrestling (AJPW) wrestler Mitsuharu Misawa after he had led a mass exodus in which 24 of AJPW's 26 contracted wrestlers left the promotion to form Noah.