Lio Family History
Lio Name Meaning
Southern Italian: most likely a variant of Leo, from a local form (compare De Leo), but possibly also from a reduced form of a name such as Leonardo, Leopardo, or from Greek leios ‘smooth’, ‘glossy’, presumably applied as a nickname. Catalan (Lió): habitational name from Lió in Girona province of Lyon in France (see Lyon).
Source: Dictionary of American Family Names ©2013, Oxford University Press