"Variant of Silvio"
The name Sylvio is commonly a male name from the "Italian" origin.
Sylvio is a variant spelling of Silvio, the Italian, Spanish and Portuguese form of the Roman family name Silvius. The Latin word silva, meaning woodland or forest, is the element traditionally connected with Silvius. The y spelling also appears in older French and English usage, which is the form that entered United States birth records in the early twentieth century.
Silvio means "Silver".
The pronunciation of Sylvio is SIL-vee-oh.