Atalani "John" Asiata (born 19 April 1993) is a professional rugby league footballer who plays as a lock, prop and five-eighth for the Leigh Centurions in the Betfred Super League and has played for both Samoa and Tonga at international level. He previously played for Brisbane Broncos and the North Queensland Cowboys in the National Rugby League, forming part of the Cowboys' 2015 NRL Grand Final and 2016 World Club Challenge winning sides.