Kilian vs Theodore

Baby Name Comparison — 2026

Kilian

Boy #1,052 Most Popular 3 Syllables

Meaning

"little church"

Origin: Irish Gaelic

Cultural Roots

Irish German French

Quick Stats

Popularity Rank
#1,052
Total SSA Count
209
Syllables
3
Formality
Moderate
Nicknames
Kili, Kill, Ian

Playground Safety Score

✓ All Clear
Full profile for Kilian →

Popularity Comparison

Kilian Rank #1,052
Theodore Rank #4

Theodore is more popular, ranked #4 vs #1052 for Kilian.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Kilian ___

  • Kilian James
  • Kilian Patrick
  • Kilian Sean
  • Kilian Finn
  • Kilian John
  • Kilian Thomas

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 Kilian

Declan Niall Fionn Ronan Siobhan

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 Kilian or Theodore more popular?

Theodore is more popular, ranked #4 compared to Kilian at #1052 in the United States.

What do Kilian and Theodore mean?

Kilian means "little church" (Irish Gaelic origin). Theodore means "divine gift" (Greek origin).

Are Kilian and Theodore boy or girl names?

Kilian is primarily a boy name. Theodore is primarily a boy name.

More Comparisons

Theodore vs Kilian Kilian vs Bryant Kilian vs Kaisen Kilian vs Zen Kilian vs Kaycen
← Full profile: Kilian ← Full profile: Theodore Browse all baby names