Carlos Alberto Pinto Fonseca (1933–2006) was a Brazilian musician. He was born in Belo Horizonte, in the state of Minas Gerais.Pinto Fonseca had a very successful career as a conductor. He won several conducting competitions, not only in Brazil, but also in Argentina and Italy. Under his direction, the Madrigal Ars Nova toured in South America and Europe and achieved international recognition as one of the best Brazilian choral groups. Pinto Fonseca is well known for his arrangements of folk music. The Missa Afro-Brasileiria (1976) won the "Best Vocal Work" prize of the Associação dos Críticos de São Paulo, and later became his most popular choral work in the United States.