Aiden vs Theodore

Baby Name Comparison — 2026

Aiden

Boy #47 Most Popular 2 Syllables

Meaning

"Little fire; born of fire"

Origin: Irish Gaelic

Cultural Roots

Irish English American

Quick Stats

Popularity Rank
#47
Total SSA Count
6,243
Syllables
2
Formality
Casual
Nicknames
Aide, A

Playground Safety Score

✓ All Clear
Full profile for Aiden →

Popularity Comparison

Aiden Rank #47
Theodore Rank #4

Theodore is more popular, ranked #4 vs #47 for Aiden.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Aiden ___

  • Aiden James
  • Aiden Michael
  • Aiden Thomas
  • Aiden Cole
  • Aiden Ryan
  • Aiden Scott

Theodore ___

  • Theodore James
  • Theodore William
  • Theodore Alexander
  • Theodore John
  • Theodore Henry
  • Theodore Arthur

Sibling Name Ideas

Names that pair well as siblings.

If you choose Aiden

Liam Caden Owen Brynn Fiona

If you choose Theodore

Olivia Charlotte Amelia Eleanor Oliver

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 Aiden or Theodore more popular?

Theodore is more popular, ranked #4 compared to Aiden at #47 in the United States.

What do Aiden and Theodore mean?

Aiden means "Little fire; born of fire" (Irish Gaelic origin). Theodore means "divine gift" (Greek origin).

Are Aiden and Theodore boy or girl names?

Aiden is primarily a boy name. Theodore is primarily a boy name.

More Comparisons

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← Full profile: Aiden ← Full profile: Theodore Browse all baby names