Davani (Persian: دوانی) is a primarily Persian-language surname, although it is also found in Papua New Guinea. Notable people with the surname include:
Alex Davani (born 1985), Papua New Guinean footballer Ali Davani (1929–2007), Iranian scholar Catherine Davani (1960–2016), Papua New Guinean judge Jalaladdin Davani (1462–1502), Iranian scholar Pirouz Davani, Iranian leftist activist Reggie Davani (born 1980), Papua New Guinean footballer