Keir vs Theodore

Baby Name Comparison — 2026

Keir

Boy #6,610 Most Popular 1 Syllable

Meaning

"dark one, dark-complexioned"

Origin: Scottish Gaelic ciar

Cultural Roots

Scottish Irish British

Quick Stats

Popularity Rank
#6,610
Total SSA Count
13
Syllables
1
Formality
Moderate

Playground Safety Score

✓ All Clear
Full profile for Keir →

Popularity Comparison

Keir Rank #6,610
Theodore Rank #4

Theodore is more popular, ranked #4 vs #6610 for Keir.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Keir ___

  • Keir Alexander
  • Keir James
  • Keir Douglas
  • Keir Alistair
  • Keir Malcolm
  • Keir Fraser

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 Keir

Callum Hamish Angus Isla Morag

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 Keir or Theodore more popular?

Theodore is more popular, ranked #4 compared to Keir at #6610 in the United States.

What do Keir and Theodore mean?

Keir means "dark one, dark-complexioned" (Scottish Gaelic ciar origin). Theodore means "divine gift" (Greek origin).

Are Keir and Theodore boy or girl names?

Keir is primarily a boy name. Theodore is primarily a boy name.

More Comparisons

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