Zeltia Montes Muñoz (born 1979) is a Spanish composer. She won the Goya Award for Best Original Score for her work in The Good Boss.
Zeltia Montes Muñoz was born in 1979 in Madrid; her mother is from Madrid and her father from O Saviñao, Galicia. She studied at the Berklee College of Music in Boston.
In 2008, she collaborated in the documentary television series El camino del Cid (2008). She made her debut in a film score in ', winning a Mestre Mateo Award. She won the Goya Award for Best Original Score for The Good Boss (2021).