Theodor is a distinctive boys' name in United States, ranking #4877 in 2008 with 20 recorded births. The name reached its all-time peak in 2022 with 88 births ranking #1836. Since 1996, the popularity has increased by 81.8%. In 2008, approximately 1 in every 101,997 boys born was named Theodor. FALLING Recent data shows the name is currently falling.