Gianni is an Italian name (occasionally a surname), a short form of the Italian Giovanni and a cognate of John meaning God is gracious. Gianni is the most common diminutive of Giovanni in Italian.

People with this given name

• Gianni Agnelli (industrialist)
• Gianni Alemanno (politician)
• Gianni Amelio (film director)
• Gianni Baget Bozzo (Roman Catholic priest and political expert)
• Gianni Bellocchi (scientist)
• Gianni Brera (journalist)
• Gianni Bugno (cyclist)
• Gianni Danzi (Roman Catholic bishop)
• Gianni Davito (high jumper)
• Gianni De Biasi (Italian football coach)
• Gianni De Fraja (economics professor)
• Gianni De Michelis (politician)
• Gianni Garko (actor, born Giovanni Garcovich)
• Gianni Ghidini (cyclist)
• Gianni Infantino (President of FIFA)
• Gianni Letta (politician)
• Gianni Mina (tennis player)
• Gianni Minà (journalist)
• Gianni Morandi (singer)
• Gianni Morbidelli (Formula One driver)
• Gianni Motta (cyclist)
• Gianni Pettenati (singer)
• Gianni Riotta (journalist)
• Gianni Rivera (footballer)
• Gianni Rodari (writer)
• Gianni Romme (skater)
• Gianni Russo (actor)
• Gianni Stensness (footballer)
• Gianni Togni (singer)
• Gianni Vattimo (philosopher)
• Gianni Vella (artist)
• Gianni Vernetti (politician)
• Gianni Versace (fashion designer)
• Gianni Vignaduzzi (track cyclist)
• Gianni Zuiverloon (footballer)

People with this surname

• Alberto Gianni (1891–1930), Italian diver
• Dimitrie Gianni (1838–1902), Romanian politician
• Gary Gianni (born 1954), American comics artist
• Lapo Gianni (died after 1328), Italian poet
• Mario Gianni (1902–1967), Italian footballer
• Matthieu Gianni (born 1985), Italian footballer
• Nicolás Gianni (born 1982), Italian footballer
• Paul Gianni, Australian paralympic athlete
• Patrizia Gianni (born 1952), Italian mathematician

Fictional people with this name

• Gianni di Marco, a character on the British TV show Eastenders, portrayed by actor Marc Bannerman.