Priceless, highly praiseworthy, or from the old town
Altonio is a rare elaboration of Alton or a variant of Antonio. It likely blends the English surname origin meaning 'old town' with the Latin roots of Anthony, which refers to someone of inestimable worth.
Fewer than 5 boys were named Altonio in 2025.
US births per 5-year period, 1990–present (SSA data).
