Carlos Marín (born October 13, 1968) is a Spanish baritone and member of the opera-pop quartet IL DIVO. Born in Rüsselsheim, Germany, raised in Mörfelden-Walldorf (Hessen, Germany), but educated in Madrid, Spain, Marín begins his career very young, recording his first album when he was eight years old, produced by Father Abraham. The album, entitled El pequeño Caruso, contained songs such as O Sole Mio and Granada.

At twelve he moved to Spain, where he won several first prizes in television competitions, such as Gente Joven and Nueva Gente on TVE at 15 and 20 years old. During this time he begins to sing live accompanied by an orchestra in television programs

He has gained an important reputation as a singer, cultivating different musical styles and receiving excellent reviews

In December of 2003, he became member of the international musical quartet IL DIVO.