Lattanzio is an Italian surname and given name. Notable people with the name include:
Given name Lattanzio Gambara (c. 1530–1574), Italian painter Lattanzio Lattanzi (d. 1587), Italian Roman Catholic bishop Lattanzio Mainardi (fl. 16th century), Italian painter Lattanzio Pagani (active after 1543, died circa 1582), Italian painter Lattanzio da Rimini (active 1492 — 1505), Italian painter
Surname Carlo Lattanzio (born 1997), Argentine footballer Chris Lattanzio (born 1963), American artist Ettore Lattanzio (born 1990), Canadian football defensive lineman Giannina Lattanzio (born 1993), Italian-born Ecuadorian footballer Patricia Lattanzio, Canadian politician and lawyer Vittorio Lattanzio (1926–2010), Italian politician and physician