Thi is a distinctive girls' name in United States, ranking #12918 in 2005 with 8 recorded births. The name reached its all-time peak in 2007 with 16 births ranking #8063. Since 1996, the popularity has decreased by 27.3%. In 2005, approximately 1 in every 230,962 girls born was named Thi. RISING Recent data shows the name is currently rising.