Theodor is a distinctive boys' name in United States, ranking #2094 in 2021 with 70 recorded births. The name reached its all-time peak in 2022 with 88 births ranking #1836. Since 1996, the popularity has increased by 536.4%. In 2021, approximately 1 in every 24,975 boys born was named Theodor. FALLING Recent data shows the name is currently falling.