Andrea da Firenze (also known as Andreas da Florentia, Andrea de' Servi, Andrea degli Organi, Andrea di Giovanni, and Horghanista de Florentia; died 1415) was a Florentine composer and organist of the late medieval era. Along with Francesco Landini and Paolo da Firenze, he was a leading representative of the Italian ars nova style of the Trecento, and was a prolific composer of secular songs, principally ballate.