Gareth is a distinctive boys' name in England & Wales, ranking #504 in 2006 with 60 recorded births. The name reached its all-time peak in 1996 with 373 births ranking #117. Since 1996, the popularity has decreased by 83.9%. In 2006, approximately 1 in every 5,339 boys born was named Gareth. FALLING Recent data shows the name is currently falling.