Gareth is a distinctive boys' name in United States, ranking #1750 in 2017 with 88 recorded births. The name reached its all-time peak in 2016 with 104 births ranking #1580. Since 1996, the popularity has increased by 14.3%. In 2017, approximately 1 in every 21,026 boys born was named Gareth. STABLE Recent data shows the name is currently stable.