Could Erin be the perfect name for your baby girl? The baby girl name Erin is 4 letters long, and contains 2 vowel(s) and 2 consonant(s). Erin is a baby girl name that starts with the letter E and ends in the letter N. The baby girl name Erin has a popularity of 48% and is ranked 520 in the list of top 1000 most popular baby girl names. If Erin 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 Erin!