Could Jon be the perfect name for your baby boy? The baby boy name Jon is 3 letters long, and contains 1 vowel(s) and 2 consonant(s). Jon is a baby boy name that starts with the letter J and ends in the letter N. The baby boy name Jon has a popularity of 24% and is ranked 756 in the list of top 1000 most popular baby boy names. If Jon 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 Jon!