Thy is a distinctive girls' name in United States, ranking #10032 in 2008 with 12 recorded births. The name reached its all-time peak in 2002 with 17 births ranking #6673. Since 1996, the popularity has increased by 71.4%. In 2008, approximately 1 in every 157,560 girls born was named Thy. STABLE Recent data shows the name is currently stable.