Sergio Armando Villanueva Reyes (born 19 August 1991) is a Mexican professional boxer who held the WBC Youth featherweight title from 2011 to 2012.
In December 2010, Sergio beat the veteran Erick Perez, the bout was held at the Estadio Beto ÃÂvila, in Veracruz, Veracruz, Mexico.
On 18 June 2011 Villanueva defeated Colombia's Onalvi Sierra. The bout was for the vacant WBC Youth featherweight title and was held on the undercard of Canelo ÃÂlvarez vs. Ryan Rhodes.