Ricardo Edgar Castillo (born 7 June 1979) is a Mexican professional boxer NABF Featherweight Champion. Ricardo is the younger brother of former world champion, José Luis Castillo.
On 19 December 2009, Carrillo fought to a draw against IBF Featherweight champion Cristobal Cruz at the Palenque de Gallos in Tuxtla Gutiérrez, Chiapas, Mexico.