Gareth is a distinctive boys' name in United States, ranking #2376 in 2013 with 53 recorded births. The name reached its all-time peak in 2016 with 104 births ranking #1580. Since 1996, the popularity has decreased by 31.2%. In 2013, approximately 1 in every 35,684 boys born was named Gareth. STABLE Recent data shows the name is currently stable.