Thanh is a distinctive boys' name in United States, ranking #5547 in 2005 with 15 recorded births. This places Thanh in the top 41% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1999 with 28 births ranking #3024. Since 1996, the popularity has decreased by 44.4%. In 2005, approximately 1 in every 133,143 boys born was named Thanh. FALLING Recent data shows the name is currently falling.