Given name

Theseus

Theseus is used as a given name.

Meaning & origin

Where it comes from

An origin associated with this spelling is Greek.

The story

Published U.S. birth records include this spelling as early as 2010. This is the earliest published observation available here, rather than a date for the name’s origin.

From dated birth records

Theseus through the years

Babies since 1880
442
442 boys · 0 girls
Most popular year
2015
44 babies
2025
19
#5,181 for boys
2021–25 vs 2016–20
−8%
Steady
01020302025Highest share 201511
Theseus in U.S. Social Security birth records, 2010–2025, per million boys born. Years with fewer than five births for a sex are not published and appear as zero. Use the arrow keys to step through years.

By the numbers

In 2025, this name appeared in 19 U.S. birth records for boys, ranking No. 5,181 among boys’ names. Average annual use for boys was 7.7% lower in 2021–2025 than in 2016–2020. Its largest published annual count for boys was 44 in 2015.

From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.

Theseus’s family of names

Theseus has a related form in Thesius. Theseus has a related form in Thesyus.

Walk Theseus’s family in the name graph

TheseusThesiusThesyusTeseu

Inner ring: nicknames and forms · outer: across languages.

Hover or tab through the constellation to see how each name is related. Bigger dots are names more people in the U.S. share.

Nicknames & forms 2

Diminutives, pet forms, short forms and variants used alongside the name.

Across languages 1

Equivalents and cognates in other languages, plus older forms it grew from.

Similar names

If you love Theseus, these share its style, era, origin or sound, from outside its own family.

Greek · Modern

Odysseus

Odysseus is a masculine given name from Ancient Greek.

30RareSteady

>99% boys

Greek · Modern

Perseus

Perseus is a masculine given name from Ancient Greek. It is used in Latin.

45UncommonRising fast

99% boys · 1% girls

Greek · Modern

Aeson

30RareCooling

>99% boys

Greek · Modern

Morpheus

0Not recently recorded

>99% boys

Greek · Modern

Ajax

Ajax is a masculine given name from Latin, ultimately from Ancient Greek.

28RareRising

>99% boys

Greek · Modern

Eros

“love”

44UncommonRising fast

>99% boys

Greek · Modern

Leto

Leto is a surname from Ancient Greek. It is used in English and Italian.

19Very rareRising fast

>99% boys

Greek · Modern

Hades

30RareRising fast

98% boys · 2% girls

Sibling ideas

Names that share Theseus’s feel without repeating its first letter or rhyming with it.

A brother for Theseus

A sister for Theseus