Could Cynthia be the perfect name for your baby girl? The baby girl name Cynthia is 7 letters long, and contains 2 vowel(s) and 5 consonant(s). Cynthia is a baby girl name that starts with the letter C and ends in the letter A. The baby girl name Cynthia has a popularity of 11% and is ranked 888 in the list of top 1000 most popular baby girl names. If Cynthia 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 Cynthia!