Keir vs Siar

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 →

Siar

Boy #6,591 Most Popular 1 Syllable

Meaning

"westward, to the west"

Origin: Irish Gaelic

Cultural Roots

Irish Scottish Celtic

Quick Stats

Popularity Rank
#6,591
Total SSA Count
13
Syllables
1
Formality
Moderate

Playground Safety Score

✓ All Clear
Full profile for Siar →

Popularity Comparison

Keir Rank #6,610
Siar Rank #6,591

Siar is more popular, ranked #6591 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

Siar ___

  • Siar James
  • Siar Patrick
  • Siar Finn
  • Siar Eoin
  • Siar Cormac
  • Siar Oisín

Sibling Name Ideas

Names that pair well as siblings.

If you choose Keir

Callum Hamish Angus Isla Morag

If you choose Siar

Ciar Fionn Aoife Niamh Rónán

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 Siar more popular?

Siar is more popular, ranked #6591 compared to Keir at #6610 in the United States.

What do Keir and Siar mean?

Keir means "dark one, dark-complexioned" (Scottish Gaelic ciar origin). Siar means "westward, to the west" (Irish Gaelic origin).

Are Keir and Siar boy or girl names?

Keir is primarily a boy name. Siar is primarily a boy name.

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