Gareth is a distinctive boys' name in United States, ranking #2262 in 2006 with 56 recorded births. The name reached its all-time peak in 2016 with 104 births ranking #1580. Since 1996, the popularity has decreased by 27.3%. In 2006, approximately 1 in every 36,699 boys born was named Gareth. STABLE Recent data shows the name is currently stable.