Thien is a distinctive boys' name in United States, ranking #5221 in 2012 with 18 recorded births. The name reached its all-time peak in 1996 with 42 births ranking #2072. Since 1996, the popularity has decreased by 57.1%. In 2012, approximately 1 in every 105,368 boys born was named Thien. FALLING Recent data shows the name is currently falling.