Thien is a distinctive boys' name in United States, ranking #3878 in 2014 with 27 recorded births. The name reached its all-time peak in 1996 with 42 births ranking #2072. Since 1996, the popularity has decreased by 35.7%. In 2014, approximately 1 in every 71,127 boys born was named Thien. FALLING Recent data shows the name is currently falling.