Theodor is a distinctive boys' name in England & Wales, ranking #873 in 2015 with 35 recorded births. The name reached its all-time peak in 2021 with 76 births ranking #514. Since 1996, the popularity has increased by 1,066.7%. In 2015, approximately 1 in every 9,521 boys born was named Theodor. RISING Recent data shows the name is currently rising.