Theadore is a distinctive boys' name in United States, ranking #13883 in 2018 with 5 recorded births. This places Theadore in the bottom 2% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2015 with 8 births ranking #9472. In 2018, approximately 1 in every 363,095 boys born was named Theadore. STABLE Recent data shows the name is currently stable.