Theodor is a distinctive boys' name in United States, ranking #4868 in 2001 with 16 recorded births. The name reached its all-time peak in 2022 with 88 births ranking #1836. Since 1996, the popularity has increased by 45.5%. In 2001, approximately 1 in every 121,427 boys born was named Theodor. FALLING Recent data shows the name is currently falling.