Kiaran vs Theodore

Baby Name Comparison — 2026

Kiaran

Boy #18,076 Most Popular 2 Syllables

Meaning

"little dark one"

Origin: Irish

Cultural Roots

Irish Scottish

Quick Stats

Popularity Rank
#18,076
Total SSA Count
6
Syllables
2
Formality
Moderate
Nicknames
Kian, Ki

Playground Safety Score

✓ All Clear
Full profile for Kiaran →

Popularity Comparison

Kiaran Rank #18,076
Theodore Rank #4

Theodore is more popular, ranked #4 vs #18076 for Kiaran.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Kiaran ___

  • Kiaran James
  • Kiaran Patrick
  • Kiaran Connor
  • Kiaran Finn
  • Kiaran Liam
  • Kiaran Sean

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 Kiaran

Ronan Declan Aoife Siobhan Cormac

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 Kiaran or Theodore more popular?

Theodore is more popular, ranked #4 compared to Kiaran at #18076 in the United States.

What do Kiaran and Theodore mean?

Kiaran means "little dark one" (Irish origin). Theodore means "divine gift" (Greek origin).

Are Kiaran and Theodore boy or girl names?

Kiaran is primarily a boy name. Theodore is primarily a boy name.

More Comparisons

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