- Source: Caiazzo (surname)
Caiazzo is a toponymic surname of Italian origin from Caiazzo, Campania, which is derived from the personal name Caio, a form of the Latin name Gaius. Notable people with the surname include:
Chris Caiazzo (fl. 2015–present), American politician
John Kronus (real name George Caiazzo; 1969–2007), American professional wrestler
Sara Caiazzo (born 2003), Italian footballer
