Could Clay be the perfect name for your baby boy? The baby boy name Clay is 4 letters long, and contains 1 vowel(s) and 3 consonant(s). Clay is a baby boy name that starts with the letter C and ends in the letter Y. The baby boy name Clay has a popularity of 36% and is ranked 644 in the list of top 1000 most popular baby boy names. If Clay 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 Clay!