Allan vs Theodore

Baby Name Comparison — 2026

Allan

Boy #854 Most Popular 2 Syllables

Meaning

"rock, harmony"

Origin: Celtic/Brythonic

Cultural Roots

Scottish English French American

Quick Stats

Popularity Rank
#854
Total SSA Count
283
Syllables
2
Formality
Moderate
Nicknames
Al

Playground Safety Score

✓ All Clear
Full profile for Allan →

Popularity Comparison

Allan Rank #854
Theodore Rank #4

Theodore is more popular, ranked #4 vs #854 for Allan.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Allan ___

  • Allan James
  • Allan Robert
  • Allan John
  • Allan Thomas
  • Allan Lee
  • Allan 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 Allan

Colin Duncan Kenneth Ross Janet

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 Allan or Theodore more popular?

Theodore is more popular, ranked #4 compared to Allan at #854 in the United States.

What do Allan and Theodore mean?

Allan means "rock, harmony" (Celtic/Brythonic origin). Theodore means "divine gift" (Greek origin).

Are Allan and Theodore boy or girl names?

Allan is primarily a boy name. Theodore is primarily a boy name.

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