Thanh is a distinctive boys' name in United States, ranking #5801 in 1998 with 11 recorded births. The name reached its all-time peak in 1999 with 28 births ranking #3024. Since 1996, the popularity has decreased by 59.3%. In 1998, approximately 1 in every 173,756 boys born was named Thanh. FALLING Recent data shows the name is currently falling.