Theo is a popular boys' name in United States, ranking #78 in 2023 with 4,137 recorded births. The name reached its all-time peak in 2023 with 4,137 births ranking #78. Since 1996, the popularity has increased by 7,705.7%. In 2023, approximately 1 in every 413 boys born was named Theo. RISING Recent data shows the name is currently rising.