Theodor is a distinctive boys' name in United States, ranking #9151 in 1997 with 6 recorded births. The name reached its all-time peak in 2022 with 88 births ranking #1836. Since 1996, the popularity has decreased by 45.5%. In 1997, approximately 1 in every 314,182 boys born was named Theodor. FALLING Recent data shows the name is currently falling.