Cataldi is an Italian surname. Notable people with the surname include:
Angelo Cataldi (born 1951), American radio personality Anna Cataldi (1939–2021), Italian humanitarian and journalist Annaclara Cataldi Palau, Italian paleographer Danilo Cataldi (born 1994), Italian footballer Lee Cataldi (born 1942), Australian poet Marianna Cataldi (born 1976), Italian singer-songwriter and composer Pietro Cataldi (1548–1626), Italian mathematician Renato Cataldi (1909–1981), Brazilian painter