Thy is a distinctive girls' name in United States, ranking #10767 in 2007 with 11 recorded births. The name reached its all-time peak in 2002 with 17 births ranking #6673. Since 1996, the popularity has increased by 57.1%. In 2007, approximately 1 in every 174,768 girls born was named Thy. STABLE Recent data shows the name is currently stable.