Over the past 110 years, 10 074 girls and 23 boys have been named Rhea. The name Rhea ranks 1294th in the United States among the most common names for girls. For the first time more than ten times newborns were named Rhea in 1910. The peak of popularity of the name Rhea came in the 1910s and 2010s. You can see absolute numbers and relative numbers on the chart. Indicators per 100K more accurately assess the popularity of the name.