Thu is a distinctive girls' name in United States, ranking #16257 in 2015 with 6 recorded births. The name reached its all-time peak in 2003 with 18 births ranking #6561. Since 1996, the popularity has decreased by 64.7%. In 2015, approximately 1 in every 297,442 girls born was named Thu. RISING Recent data shows the name is currently rising.