José Mário Branco (25 May 1942 – 19 November 2019) was a Portuguese singer-songwriter, actor, and record producer.

José Mário Branco was born in Porto, the son of primary school teachers, and became politically involved in the early 1960s.

This political activity during the dictatorship in Portugal and his opposition to the colonial war led him to seek exile in France in 1963.

After the 1974 revolution Branco returned to Portugal and was the founder of the music ensemble GAC – Grupo de Acção Cultural.

He composed a number of music scores for theatre plays.