Thy is a distinctive girls' name in United States, ranking #17913 in 2018 with 5 recorded births. The name reached its all-time peak in 2002 with 17 births ranking #6673. Since 1996, the popularity has decreased by 28.6%. In 2018, approximately 1 in every 340,085 girls born was named Thy. STABLE Recent data shows the name is currently stable.