Berta Alves de Sousa (8 April 1906 – 1 August 1997) was a Portuguese pianist and composer.
Candida Berta Alves de Sousa was born in Liège, Belgium.
She continued her studies in Paris with Wilhelm Backhaus and Theodor Szántó for piano and George Mingot for composition, and in Lisbon with Vianna da Motta.
She also studied orchestral conducting with Clemens Krauss in Berlin and Pedro de Freitas Branco in Lisbon.
She also experimented with Symmetry Sonora, a method developed by composer Fernando Corrêa de Oliveira.