Could Indigo be the perfect name for your baby girl? The baby girl name Indigo is 6 letters long, and contains 3 vowel(s) and 3 consonant(s). Indigo is a baby girl name that starts with the letter I and ends in the letter O. The baby girl name Indigo has a popularity of 2% and is ranked 982 in the list of top 1000 most popular baby girl names. If Indigo 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 Indigo!