John Smit, South African rugby player
John William Smit, OIS, (born 3 April 1978) is a former South African rugby union player and former chief executive officer of the Sharks. He was the 50th captain of the South Africa national team, and led the team to win the 2007 Rugby World Cup. He played most of his senior career as a hooker, but also won 13 caps as a prop, where he had also played for South Africa's under-21 team. He retired from international rugby following the 2011 Rugby World Cup as the most-capped South African player ever, with 111 appearances.

Smit was inducted into the IRB Hall of Fame on 24 October 2011 (while still active at club level), alongside all other World Cup-winning captains and head coaches from the tournament's inception in 1987 through 2007 (minus the previously inducted John Eales).