Cavalieri is an Italian surname.
Bonaventura Cavalieri (1598–1647), Italian mathematicianCaterina Cavalieri (1755–1801), Austrian opera sopranoDiego Cavalieri (born 1982), Brazilian footballer; goalkeeper for FluminenseEmilio de' Cavalieri (1550–1602), Italian composer of the late RenaissanceGrace Cavalieri (born 1932), American poet and playwrightJoey Cavalieri, American comic book writer and editorLina Cavalieri (1874–1944), Italian opera sopranoPaola Cavalieri (born 1950), Italian philosopherTommaso dei Cavalieri (c. 1508-1587), Italian friend of Michelangelo