Clement Liebert (fl. 1433–1454) was a Franco-Flemish singer and composer of the early Renaissance, active in Rome and at the Burgundian court. His life is only documented briefly for two periods. Like many composers who originated in the modern-day Low Countries, he spent time in Italy, and sang in the papal chapel in 1433. His presence is also recorded in the Burgundian court chapel, where he was employed as a singer from 1441 to 1454.