Eléider Álvarez Baytar (born 8 April 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 January 2021, Álvarez is ranked as the world's eighth best active light-heavyweight by the Transnational Boxing Rankings Board, seventh by The Ring magazine and tenth by BoxRec.