Rafael Andres Olarra Guerrero (born May 6, 1978 in Santiago, Chile) is an association football player. He plays as a defender, currently for the Universidad de Chile.
He began his career in Audax Italiano, then spent time with Universidad de Chile where he made a name for himself and began to play for the naitonal team.
After a transfer to the club from Club Deportivo Universidad Catolica at the beginning of the 2005-06 season, Olarra has established himself as a force to be reckoned with in Maccabi's defence. Olarra made his international debut on January 31, 1998, against Iran.