Thien is a distinctive boys' name in United States, ranking #3983 in 2010 with 26 recorded births. The name reached its all-time peak in 1996 with 42 births ranking #2072. Since 1996, the popularity has decreased by 38.1%. In 2010, approximately 1 in every 73,785 boys born was named Thien. FALLING Recent data shows the name is currently falling.