Adorni is an Italian surname. Notable people with the surname include:
- Agustin Adorni (born 1990), Argentine footballer
- Blessed Anna Maria Adorni Botti (1805–1893), was an Italian Roman Catholic widow
- Davide Adorni (born 1992), Italian footballer
- Lorenzo Adorni (born 1998), Italian footballer
- Manuel Adorni (born 1980), Argentine politician
- Vittorio Adorni (1937–2022), Italian cyclist