Rebecca Smyth (née Trethowan born 8 February 1985) is an Australian former rugby union player.
She represented Australia at the 2010 Rugby World Cup, they finished in third place.
[1][2] She also competed at the 2006 and 2014 Rugby World Cup's.
[3] Smyth was named in a 22-player squad that toured New Zealand in October 2007.
[4][5] In 2008, Smyth toured New Zealand again with the Wallaroos for a Two-Test series.