Theseus is a distinctive boys' name in United States, ranking #3627 in 2019 with 31 recorded births. This places Theseus in the top 26% 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 44 births ranking #2758. In 2019, approximately 1 in every 57,850 boys born was named Theseus. FALLING Recent data shows the name is currently falling.