Could Sergio be the perfect name for your baby boy? The baby boy name Sergio is 6 letters long, and contains 3 vowel(s) and 3 consonant(s). Sergio is a baby boy name that starts with the letter S and ends in the letter O. The baby boy name Sergio has a popularity of 62% and is ranked 382 in the list of top 1000 most popular baby boy names. If Sergio isn't the ideal name for your baby boy then take a look here for some randomly generated names. Hopefully you'll find a more suitable first name for your baby boy than Sergio!