Could Trey be the perfect name for your baby boy? The baby boy name Trey is 4 letters long, and contains 1 vowel(s) and 3 consonant(s). Trey is a baby boy name that starts with the letter T and ends in the letter Y. The baby boy name Trey has a popularity of 31% and is ranked 693 in the list of top 1000 most popular baby boy names. If Trey 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 Trey!