Thania is a distinctive girls' name in United States, ranking #5920 in 2011 with 23 recorded births. The name reached its all-time peak in 2001 with 77 births ranking #2149. Since 1996, the popularity has decreased by 54.0%. In 2011, approximately 1 in every 76,470 girls born was named Thania. FALLING Recent data shows the name is currently falling.