Benazzi is an Italian surname from Emilia or a romanization of the Arabic patronymic Bin ʿAzzī (). Notable people with the surname include:
Abdelatif Benazzi (born 1968), French-Moroccan rugby union player Mario Benazzi (1902–1997), Italian zoologist Vágner Benazzi (born 1954), Brazilian footballer and manager
See also Benassi Ben Azzai Diurodrilus benazzii, a species of annelid worms Dugesia benazzii, a species of planarians Polycelis benazzii, a species of planarians