Thien is a distinctive boys' name in United States, ranking #4450 in 2017 with 23 recorded births. The name reached its all-time peak in 1996 with 42 births ranking #2072. Since 1996, the popularity has decreased by 45.2%. In 2017, approximately 1 in every 80,449 boys born was named Thien. FALLING Recent data shows the name is currently falling.