Panetto is an Italian surname. Panetto can be mainly found in Italy, France, US (mainly California and New York), Brazil and Argentina. The surname seems to be originated from the region of Veneto (Italy) but many may also be found in the region of Piemonte. This surname seems to be related to bakers. Indeed, "pane", in Italian, means "bread". The suffix "etto" means "little". Thus, Panetto may be related to "little bread".