Rheagan is a distinctive girls' name in United States, ranking #8059 in 2019 with 14 recorded births. The name reached its all-time peak in 2004 with 31 births ranking #4465. Since 1996, the popularity has increased by 27.3%. In 2019, approximately 1 in every 119,827 girls born was named Rheagan. FALLING Recent data shows the name is currently falling.