Wanda Maria Ferreira de Sá (born July 11, 1944) (also Wanda de Sah) is a Brazilian bossa nova singer and guitarist, active from 1964 to the present day. Her first guitar teacher, when she was 13, was Roberto Menescal. Later, she worked with Sérgio Mendes in his group Brasil '65, and also with Marcos Valle and Kátya Chamma.