César Andres Villarraga (born September 22, 1985[1]) is a Colombian professional boxer.

As an amateur, he won a gold medal at the 2010 South American Games and qualified for the 2012 Olympics.

At the 2010 South American Games he made good use of home advantage to beat Héctor Manzanilla and Eric Bandega before defeating the future World Champion Éverton Lopes.

At the 2011 Pan American Games he lost his very first bout against Angel Suarez.

At the 2011 World Amateur Boxing Championships he again lost in the first round to Javkhlan Bariadi.