Theodor is a distinctive boys' name in United States, ranking #4178 in 2005 with 22 recorded births. The name reached its all-time peak in 2022 with 88 births ranking #1836. Since 1996, the popularity has increased by 100.0%. In 2005, approximately 1 in every 90,779 boys born was named Theodor. FALLING Recent data shows the name is currently falling.