Greg Peterson (born 26 March 1991) is a retired Australian-born American rugby union player who played lock.
[2] In 2014, Peterson was appointed as captain of the North Harbour Rays for the teams' opening game in the inaugural season of Australia's National Rugby Championship.
[8] Peterson joined the Union Bordeaux Bègles in France on 28 December 2018, as a replacement for the injured Jandré Marais.
[9] On 19 March 2019, Peterson returned to England to join with Newcastle Falcons in the Premiership Rugby on a two-year deal from the 2019-20 season.
[13] Though born in Australia, Peterson qualified to play for the United States national team by virtue of his American grandfather.