Gareth is a distinctive boys' name in United States, ranking #1650 in 2001 with 71 recorded births. This places Gareth in the top 13% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2016 with 104 births ranking #1580. In 2001, approximately 1 in every 27,364 boys born was named Gareth. STABLE Recent data shows the name is currently stable.