Gaius vs Theseus

Baby Name Comparison — 2026

Gaius

Boy #3,655 Most Popular 2 Syllables

Meaning

"to rejoice, happy, glad"

Origin: Latin

Cultural Roots

Roman Latin English American

Quick Stats

Popularity Rank
#3,655
Total SSA Count
31
Syllables
2
Formality
Formal
Nicknames
Gai, Guy

Playground Safety Score

✓ All Clear
Full profile for Gaius →

Theseus

Boy #3,732 Most Popular 3 Syllables

Meaning

"to set, to place, to establish"

Origin: Ancient Greek

Cultural Roots

Greek English Classical

Quick Stats

Popularity Rank
#3,732
Total SSA Count
30
Syllables
3
Formality
Formal
Nicknames
Theo, Seo

Playground Safety Score

✓ All Clear
Full profile for Theseus →

Popularity Comparison

Gaius Rank #3,655
Theseus Rank #3,732

Gaius is more popular, ranked #3655 vs #3732 for Theseus.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Gaius ___

  • Gaius Marcus
  • Gaius Julius
  • Gaius Alexander
  • Gaius Felix
  • Gaius James
  • Gaius William

Theseus ___

  • Theseus Ajax
  • Theseus Leon
  • Theseus James
  • Theseus Cole
  • Theseus Atlas
  • Theseus Rex

Sibling Name Ideas

Names that pair well as siblings.

If you choose Gaius

Julius Octavia Livia Marcus Caspian

If you choose Theseus

Orion Perseus Achilles Penelope Ariadne

Which Name Fits Your Family?

Answer 3 quick questions and we'll help you decide.

1. Which style feels more like your family?

Frequently Asked Questions

Is Gaius or Theseus more popular?

Gaius is more popular, ranked #3655 compared to Theseus at #3732 in the United States.

What do Gaius and Theseus mean?

Gaius means "to rejoice, happy, glad" (Latin origin). Theseus means "to set, to place, to establish" (Ancient Greek origin).

Are Gaius and Theseus boy or girl names?

Gaius is primarily a boy name. Theseus is primarily a boy name.

More Comparisons

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← Full profile: Gaius ← Full profile: Theseus Browse all baby names