Gustavo

Italian, Spanish and Portuguese form of GUSTAV.

GUSTAV   male   Swedish, Norwegian, Danish, German
Possibly means "staff of the Goths", derived from the Old Norse elements Gautr "Goth" and stafr "staff". However, the root name Gautstafr is not well attested in the Old Norse period. Alternatively, it might be derived from the Slavic name GOSTISLAV. This name has been borne by six kings of Sweden, including the 16th-century Gustav I Vasa.
GOSTISLAV   male   Medieval Slavic
Derived from the Slavic elements gosti "guest" and slava "glory".
EQUIVALENTS
ANCIENT SCANDINAVIAN: Gautstafr
DANISH: Gustav
DUTCH: Gustaaf
FINNISH: Kustaa, Kyösti
FRENCH: Gustave
GERMAN: Gustaf, Gustav
HUNGARIAN: Gusztáv
ITALIAN: Gustavo
LATVIAN: Gustavs
NORWEGIAN: Gustav
POLISH: Gustaw
PORTUGUESE: Gustavo
SPANISH: Gustavo
SWEDISH: Gösta, Göstav, Gustaf, Gustav
DIMINUTIVES AND SHORT FORMS
DUTCH: Guus
FINNISH: Kusti
OTHER FORMS
DANISH: Gustav
MEDIEVAL SLAVIC: Gostislav
NORWEGIAN: Gustav