Theodor is a distinctive boys' name in United States, ranking #2413 in 2017 with 54 recorded births. The name reached its all-time peak in 2022 with 88 births ranking #1836. Since 1996, the popularity has increased by 390.9%. In 2017, approximately 1 in every 34,265 boys born was named Theodor. FALLING Recent data shows the name is currently falling.