Thien is a distinctive boys' name in United States, ranking #3719 in 2003 with 24 recorded births. The name reached its all-time peak in 1996 with 42 births ranking #2072. Since 1996, the popularity has decreased by 42.9%. In 2003, approximately 1 in every 82,303 boys born was named Thien. FALLING Recent data shows the name is currently falling.