Theodor is a distinctive boys' name in United States, ranking #5498 in 2006 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 2006, approximately 1 in every 128,445 boys born was named Theodor. FALLING Recent data shows the name is currently falling.