Theodor is a distinctive boys' name in United States, ranking #4772 in 2004 with 18 recorded births. The name reached its all-time peak in 2022 with 88 births ranking #1836. Since 1996, the popularity has increased by 63.6%. In 2004, approximately 1 in every 110,267 boys born was named Theodor. FALLING Recent data shows the name is currently falling.