Bethan is a popular girls' name in England & Wales, ranking #84 in 1999 with 637 recorded births. The name reached its all-time peak in 1996 with 825 births ranking #72. Since 1996, the popularity has decreased by 22.8%. In 1999, approximately 1 in every 442 girls born was named Bethan. FALLING Recent data shows the name is currently falling.