Nanni is an Italian surname and a masculine Italian given name (as a shortened form of Giovanni). Notable people with the name include:
Surname Federico Nanni (born 1981), Sammarinese footballer Girolamo Nanni, 17th-century Italian painter of the Baroque period Giulia Nanni (born 1997), Italian professional racing cyclist Mauricio Nanni (1979–2026), Uruguayan footballer Miguel Nanni (born 1977), Argentine politician Roberto Nanni (born 1981), Argentine footballer Saul Nanni (born 1999), Italian actor Tito Nanni (born 1959), American former professional baseball player
Given name Nanni (born before 1750 BC), author of the first known complaint letter (Complaint tablet to Ea-nāṣir) Nanni Baldini (born 1975), Italian voice actor Nanni Balestrini (1935–2019), Italian experimental poet, author and visual artist Nanni di Banco (c. 1384–1421), Italian sculptor from Florence Nanni Cagnone (1939–2026), Italian poet, novelist, essayist and playwright Nanni Galli (1940–2019), Italian former saloon, sports-car and Formula One driver Nanni Loy (1925–1995), Italian film, theatre and TV director Nanni Moretti (born 1953), Italian film director, producer, screenwriter and actor