Rheagan is a distinctive girls' name in United States, ranking #5248 in 2008 with 28 recorded births. The name reached its all-time peak in 2004 with 31 births ranking #4465. Since 1996, the popularity has increased by 154.5%. In 2008, approximately 1 in every 67,526 girls born was named Rheagan. FALLING Recent data shows the name is currently falling.