John Hart (born 20 March 1982 in Wimbledon, England) is a retired rugby union player for London Wasps in the Aviva Premiership. His position of choice is at number eight. Hart has been captain 38 times. He came through the Wasps Academy, making his senior debut (replacement v Sale) in November 2002. In his time at the club, he played in two winning Premiership Finals and played a key role in the squads that won two Heineken Cup titles. Hart, who has made 165 appearances for the Wasps, retired in April 2012 for medical reasons.