Arno Family History
Arno Surname Meaning
Italian (southern; Arnò): from the medieval Greek personal name Arnos meaning ‘lamb’. Italian: from the personal name Arno of ancient Germanic origin (from arnu ‘eagle’).
German: from a short form of the personal name Arnold. Norwegian (Arnø): variant of Arnøy (see Arney).
Source: Dictionary of American Family Names 2nd edition, 2022