Cacilda Campos Borges Barbosa (18 May 1914 – 6 August 2010) was a Brazilian pianist, conductor and composer. She was one of the pioneers of electronic music in Brazil.
Barbosa was born in Rio de Janeiro, Brazil and graduated from the National School of Music of Brazil. She studied with Antônio Francisco Braga, piano with P. Chaves, harmony with Oscar Lorenzo Fernandez and theory with Lima Coutinho. After completing her education, Barbosa worked as a dance pianist playing waltzes and chorinhos, and in the 1950s was conductor of the Radio Center Drive orchestra.
Barbosa worked with Heitor Villa-Lobos from 1930, and served as director of the Instituto Villa-Lobos. She became a professor for chamber ensemble of the National School of Music at the University of Brazil and professor of counterpoint and fugue at the Popular School of Music Education. She also directed a number of orchestras and choir ensembles.
Barbosa composed a number of works, many with a strong Brazilian theme. She also composed a number of pieces of orchestral music and chamber music together with pieces for teaching piano students. Selected works include: