Could Rhea be the perfect name for your baby girl? The baby girl name Rhea is 4 letters long, and contains 2 vowel(s) and 2 consonant(s). Rhea is a baby girl name that starts with the letter R and ends in the letter A. The baby girl name Rhea has a popularity of 37% and is ranked 628 in the list of top 1000 most popular baby girl names. If Rhea 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 Rhea!