Could Duke be the perfect name for your baby boy? The baby boy name Duke is 4 letters long, and contains 2 vowel(s) and 2 consonant(s). Duke is a baby boy name that starts with the letter D and ends in the letter E. The baby boy name Duke has a popularity of 36% and is ranked 637 in the list of top 1000 most popular baby boy names. If Duke 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 Duke!