John Lang, Australian rugby league player and coach
John Lang (born 7 November 1950) is an Australian former professional rugby league footballer who played in the 1960s, 1970s and 1980s, and coached in the 1980s through to the 2010s. A Queensland State of Origin and Australian international representative hooker, he played his club football in Brisbane with the Eastern Suburbs Tigers and in Sydney with the Eastern Suburbs Roosters. After playing, Lang became a first-grade coach in Brisbane with Easts, then in Sydney with the Cronulla-Sutherland Sharks, Penrith Panthers (with whom he won the 2003 NRL premiership) and South Sydney Rabbitohs. Lang also coached the Australian Super League test team in 1997.

Lang's son, Martin Lang, also played for the Sharks, Panthers, Queensland and Australia, and uniquely played his entire first-grade career with his father as coach.