Theodore is an extremely popular boys' name in England & Wales, ranking #8 in 2024 with 2,761 recorded births. The name reached its all-time peak in 2021 with 2,889 births ranking #11. Since 1996, the popularity has increased by 1,716.4%. In 2024, approximately 1 in every 101 boys born was named Theodore. STABLE Recent data shows the name is currently stable.