Pizzorno is an Italian surname from Liguria and southern Piedmont, possibly derived from place names in northern Tuscany. Notable people with the surname include:
Alessandro Pizzorno (1924–2019), Italian sociologist, political scientist and philosopher Ángelo Pizzorno (born 1992), Uruguayan footballer Serge Pizzorno (born 1980), British guitarist, vocalist, music producer and songwriter Tullio Pizzorno (1921–1988), Italian sailor
See also Bianca Pitzorno (born 1942), Italian children's writer
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