Theodor is a distinctive boys' name in England & Wales, ranking #1339 in 2013 with 18 recorded births. The name reached its all-time peak in 2021 with 76 births ranking #514. Since 1996, the popularity has increased by 500.0%. In 2013, approximately 1 in every 18,532 boys born was named Theodor. RISING Recent data shows the name is currently rising.