Eléider Álvarez Baytar (born April 8, 1984) is a Colombian professional boxer who held the WBO light-heavyweight title from 2018 to 2019.
As an amateur he won a gold medal at the 2007 Pan American Games in the light-heavyweight division.
As of April 2019, Álvarez is ranked as the world's fourth best active light-heavyweight by the Transnational Boxing Rankings Board, and fifth by The Ring magazine and BoxRec.