Thy is a distinctive girls' name in United States, ranking #16600 in 2011 with 6 recorded births. The name reached its all-time peak in 2002 with 17 births ranking #6673. Since 1996, the popularity has decreased by 14.3%. In 2011, approximately 1 in every 293,134 girls born was named Thy. STABLE Recent data shows the name is currently stable.