Lanzi is an Italian surname. Notable people with the surname include:
Asia Lanzi (born 2002), Italian skateboarder Enrico Lanzi (1953–2025), Italian footballer and manager François Lanzi (1916–1988), French artist Gaetano Lanzi (1905–1980), Italian boxer Lorenzo Lanzi (born 1981), Italian motorcycle racer Luigi Lanzi (1732–1810), Italian art historian and archaeologist Mario Lanzi (1914–1980), Italian middle-distance runner