Rhea is a distinctive girls' name in United States, ranking #639 in 2025 with 452 recorded births. The name reached its all-time peak in 2023 with 577 births ranking #526. Since 1996, the popularity has increased by 444.6%. In 2025, approximately 1 in every 3,556 girls born was named Rhea. FALLING Recent data shows the name is currently falling.