Thien is a distinctive boys' name in United States, ranking #3273 in 2008 with 35 recorded births. The name reached its all-time peak in 1996 with 42 births ranking #2072. Since 1996, the popularity has decreased by 16.7%. In 2008, approximately 1 in every 58,284 boys born was named Thien. FALLING Recent data shows the name is currently falling.