Thu is a distinctive girls' name in United States, ranking #10403 in 2010 with 11 recorded births. This places Thu in the bottom 48% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2003 with 18 births ranking #6561. Since 1996, the popularity has decreased by 35.3%. In 2010, approximately 1 in every 161,575 girls born was named Thu. RISING Recent data shows the name is currently rising.