Allegri is an Italian surname. Notable people with the surname include:
Gregorio Allegri (1582-1652), Italian composer (the composer of a well-known Miserere)
Domenico Allegri (1585-1629), Italian composer (brother of Gregorio)
Lorenzo Allegri (painter) (died 1527), Italian painter and uncle of Correggio
Lorenzo Allegri (1567-1648), Italian composer and lutenist (sometimes known as Lorenzino Tedesco)
Antonio da Correggio (1489-1534, full name Antonio Allegri da Correggio), Italian Renaissance painter
Massimiliano Allegri (born 1967), Italian football manager and former player
Pomponio Allegri (1521-1593), Italian painter
