Claudio Ariel Rojas Martínez (born 29 November 1973) is a retired Guatemalan football midfielder who has played for Argentinian giants River Plate.
A small midfield player, Rojas played for Argentinian clubs River Plate, San Lorenzo and Instituto in the mid-1990s before returning to Guatemalan giants Comunicaciones for 5 years and then left them for eternal rivals Municipal in 2004.
He then switched clubs every year, featuring in Jalapa, Mixco and Petapa squads before retiring.
He made his debut for Guatemala in a November 1997 friendly match against Chile and has earned a total of 24 caps, scoring no goals.
His final international was a May 2001 UNCAF Nations Cup match against Costa Rica.