Rigo

A Spanish given name and short form of Rodrigo, itself from the Germanic 'Hrodric' meaning 'famous ruler' or 'fame-power.'

Rigo has that appealing Latin American shortness — a name whittled down to its most essential, confident form. In Spanish-speaking households it is a natural nickname for Rodrigo, but as a standalone name it has enough presence to stand completely on its own. It is punchy, warm, and has a roll to it that makes it satisfying to call. A dog named Rigo probably has a strong personality, a slightly dominant streak, and the kind of charm that makes the dominant streak entirely forgivable.