Arnaldo Antunes (Portuguese pronunciation: [axˈnawdu ɐ̃ˈtunis], born Arnaldo Augusto Nora Antunes Filho, September 2, 1960) is a Brazilian musician, writer, and composer. He was a member of the rock band Titãs, which he co-founded in 1982 and left ten years later. After 1992, he embarked on a solo career. He has published poetry and had his first book published in 1983. He has worked with Marisa Monte, Tribalistas, and Carlinhos Brown.