Could Jay be the perfect name for your baby boy? The baby boy name Jay is 3 letters long, and contains 1 vowel(s) and 2 consonant(s). Jay is a baby boy name that starts with the letter J and ends in the letter Y. The baby boy name Jay has a popularity of 62% and is ranked 382 in the list of top 1000 most popular baby boy names. If Jay 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 Jay!