Could Finnegan be the perfect name for your baby boy? The baby boy name Finnegan is 8 letters long, and contains 3 vowel(s) and 5 consonant(s). Finnegan is a baby boy name that starts with the letter F and ends in the letter N. The baby boy name Finnegan has a popularity of 57% and is ranked 430 in the list of top 1000 most popular baby boy names. If Finnegan 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 Finnegan!