Thornton is a distinctive boys' name in United States, ranking #4647 in 1997 with 14 recorded births. The name reached its all-time peak in 1996 with 16 births ranking #4171. Since 1996, the popularity has decreased by 12.5%. In 1997, approximately 1 in every 134,649 boys born was named Thornton. RISING Recent data shows the name is currently rising.