Theadora is a distinctive girls' name in England & Wales, ranking #763 in 2025 with 48 recorded births. The name reached its all-time peak in 2019 with 63 births ranking #623. Since 1996, the popularity has increased by 585.7%. In 2025, approximately 1 in every 5,277 girls born was named Theadora. STABLE Recent data shows the name is currently stable.