Kilian vs Mattias

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
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Mattias

Boy #1,145 Most Popular 3 Syllables

Meaning

"gift of God, gift of Yahweh"

Origin: Hebrew

Cultural Roots

Swedish German Finnish Dutch

Quick Stats

Popularity Rank
#1,145
Total SSA Count
183
Syllables
3
Formality
Moderate
Nicknames
Matti, Tias, Matt

Playground Safety Score

✓ All Clear
Full profile for Mattias →

Popularity Comparison

Kilian Rank #1,052
Mattias Rank #1,145

Kilian is more popular, ranked #1052 vs #1145 for Mattias.

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

Mattias ___

  • Mattias Erik
  • Mattias Lars
  • Mattias Henrik
  • Mattias Johan
  • Mattias Axel
  • Mattias Gustav

Sibling Name Ideas

Names that pair well as siblings.

If you choose Kilian

Declan Niall Fionn Ronan Siobhan

If you choose Mattias

Astrid Sigrid Lukas Elsa Johan

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 Mattias more popular?

Kilian is more popular, ranked #1052 compared to Mattias at #1145 in the United States.

What do Kilian and Mattias mean?

Kilian means "little church" (Irish Gaelic origin). Mattias means "gift of God, gift of Yahweh" (Hebrew origin).

Are Kilian and Mattias boy or girl names?

Kilian is primarily a boy name. Mattias is primarily a boy name.

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