Rocky Trimarchi is an Australian former professional rugby league footballer who last played for the Western Suburbs Magpies in the Ron Massey Cup.

Trimarchi made his NRL début on 16 April 2006, scoring a try in his ninth minute on the field against the Cronulla-Sutherland Sharks.

Shortly before the start of the 2010 season, Trimarchi signed with Crusaders of the Super League.

[3] In 2011, he was announced as a member of the Italian side that competed in the 2013 World Cup qualifying.

[4] Also in 2011, Trimarchi joined Group 6 country rugby league side the Narellan Jets.