Could Aileen be the perfect name for your baby girl? The baby girl name Aileen is 6 letters long, and contains 4 vowel(s) and 2 consonant(s). Aileen is a baby girl name that starts with the letter A and ends in the letter N. The baby girl name Aileen has a popularity of 36% and is ranked 641 in the list of top 1000 most popular baby girl names. If Aileen isn't the ideal name for your baby girl then take a look here for some randomly generated names. Hopefully you'll find a more suitable first name for your baby girl than Aileen!