Thu is a distinctive girls' name in United States, ranking #10631 in 2017 with 10 recorded births. The name reached its all-time peak in 2003 with 18 births ranking #6561. Since 1996, the popularity has decreased by 41.2%. In 2017, approximately 1 in every 172,588 girls born was named Thu. RISING Recent data shows the name is currently rising.