Theo is a highly popular boys' name in England & Wales, ranking #12 in 2024 with 2,387 recorded births. The name reached its all-time peak in 2022 with 2,808 births ranking #9. Since 1996, the popularity has increased by 1,889.2%. In 2024, approximately 1 in every 116 boys born was named Theo. FALLING Recent data shows the name is currently falling.