Casolani is a surname. Notable people with the surname include:
Alessandro Casolani (1552–1606), Italian painter Annetto Casolani (1815–1866), Maltese Roman Catholic bishop Cristoforo Casolani (c. 1552–after 1606), Italian painter Ilario Casolani (1588–1661), Italian painter Niccolò Casolani (1659–1714), Italian painter
See also Casolari