Simon John Forrest (born 2 August 1969) is a former rugby league and rugby union player who currently serves on the board of the Crusaders. He is the husband of Commonwealth Games medalist Anna Simcic.
Forrest played two seasons for as a back. In the 1992 National Provincial Championship he scored 13 tries. He scored 5 tries in one game against . He played for the Crusaders in 1996, and for London Scottish F.C. from 1998 to 1999.
Forrest made his debut for the South Sydney Rabbitohs in the 1998 season, in their round 9 game against the North Sydney Bears.
Forrest served as co-coach of the New Zealand universities rugby union squad from 2014 to 2019.