Thania is a distinctive girls' name in United States, ranking #5082 in 2009 with 29 recorded births. The name reached its all-time peak in 2001 with 77 births ranking #2149. Since 1996, the popularity has decreased by 42.0%. In 2009, approximately 1 in every 63,340 girls born was named Thania. FALLING Recent data shows the name is currently falling.