Thea is a popular girls' name in England & Wales, ranking #64 in 2022 with 768 recorded births. The name reached its all-time peak in 2016 with 1,132 births ranking #49. Since 1996, the popularity has increased by 1,180.0%. In 2022, approximately 1 in every 343 girls born was named Thea. FALLING Recent data shows the name is currently falling.