Rhia is a distinctive girls' name in England & Wales, ranking #773 in 2010 with 47 recorded births. The name reached its all-time peak in 2010 with 47 births ranking #773. Since 1996, the popularity has increased by 213.3%. In 2010, approximately 1 in every 6,831 girls born was named Rhia. FALLING Recent data shows the name is currently falling.