Arnoni is an Italian surname. It is a patronymic surname, meaning "son of Arnone", derived from the medieval given name Arnone. The etymology of Arnone itself is uncertain, though it may be related to the Germanic name Arno, a short form of names beginning with arn (meaning "eagle"), or it could have other origins.The surname Arnoni is most commonly found in Italy, particularly in the southern regions and on the islands. According to surname distribution data, it is most prevalent in Sicily, followed by Campania and Calabria. The highest density of the name is in the provinces of Catania, Palermo, and Naples.Meaning: "son of Arnone"Origin: Italian (patronymic from Arnone)Type: Patronymic surnameRegions of high usage: Southern Italy, especially Sicily