Ener Julio Julio (born October 14, 1973) is a former boxer from El Retén, Magdalena, Colombia, and a former WBO world junior welterweight champion.
Julio began boxing professionally in 1994, and captured the WBO Light Welterweight Title with a decision victory over Randall Bailey. He lost the belt in his first defense to DeMarcus Corley after a long period of inactivity in 2002.