Libert is a surname. Notable people with the surname include:
Clement Liebert (15th century), Franco-Flemish singer and composer Eduard von Liebert (1850–1934), Imperial German Army general Eugene R. Liebert (1866–1945), Milwaukee architect Heinz Liebert (born 1936), German chess player Joy Liebert (1914–1999), English cricketer Kathy Liebert (born 1967), American professional poker player Mary Ann Liebert, founder of Mary Ann Liebert, Inc., a publishing company Ottmar Liebert (born 1959), German-born composer and guitarist Ralph Liebert ((19181984), founder of Liebert (company) Reginaldus Liebert (15th century), French composer Ursula Liebert (1933–1998), German chess player Johan Liebert, fictional protagonist of the manga series Monster