Theresa is a moderately popular girls' name in United States, ranking #400 in 1999 with 701 recorded births. The name reached its all-time peak in 1996 with 883 births ranking #318. Since 1996, the popularity has decreased by 20.6%. In 1999, approximately 1 in every 2,530 girls born was named Theresa. RISING Recent data shows the name is currently rising.