Theodor is a distinctive boys' name in United States, ranking #4623 in 2007 with 21 recorded births. The name reached its all-time peak in 2022 with 88 births ranking #1836. Since 1996, the popularity has increased by 90.9%. In 2007, approximately 1 in every 98,821 boys born was named Theodor. FALLING Recent data shows the name is currently falling.