Caldara is a surname. Notable people with the surname include:Antonio Caldara (1670–1736), Italian composer Domenico Caldara (1814–1897), Italian painter Emilio Caldara (1868–1942), Italian Socialist Party politician Jon Caldara, American libertarian activist Mattia Caldara, Italian footballer Orme Caldara (1875–1925), American stage actor Polidoro Caldara, Italian painter Renzo Caldara, Italian bobsledder