Gethin is a distinctive boys' name in England & Wales, ranking #590 in 2001 with 32 recorded births. The name reached its all-time peak in 2008 with 159 births ranking #272. Since 1996, the popularity has decreased by 15.8%. In 2001, approximately 1 in every 8,994 boys born was named Gethin. FALLING Recent data shows the name is currently falling.