Theodor is a distinctive boys' name in England & Wales, ranking #1201 in 2010 with 21 recorded births. The name reached its all-time peak in 2021 with 76 births ranking #514. Since 1996, the popularity has increased by 600.0%. In 2010, approximately 1 in every 16,488 boys born was named Theodor. RISING Recent data shows the name is currently rising.