Four kinds of Italian surname
Italian surnames — the oldest continuous tradition in Europe — fall into familiar groups: descriptive nicknames (Rossi, “red-haired”; Ricci, “curly”), occupational names (Ferrari, “blacksmith”; Marino, “sailor”), toponymic names (Romano, “from Rome”; Costa, “coast”) and patronymics often marked by Di- or De- (“son of”).
Regional patterns
Endings hint at region: -i is typical of the north (Rossi, Bianchi), while the south favours -o (Russo, Romano). The surname Esposito, once given to foundlings, is especially common around Naples.