Garth is a distinctive boys' name in United States, ranking #3680 in 2000 with 22 recorded births. This places Garth in the top 30% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1996 with 50 births ranking #1826. Since 1996, the popularity has decreased by 56.0%. In 2000, approximately 1 in every 89,270 boys born was named Garth. FALLING Recent data shows the name is currently falling.