Killian vs Kylian

Baby Name Comparison — 2026

Killian

Boy #370 Most Popular 3 Syllables

Meaning

"associated with the church"

Origin: Irish Gaelic

Cultural Roots

Irish French American English

Quick Stats

Popularity Rank
#370
Total SSA Count
884
Syllables
3
Formality
Moderate
Nicknames
Killy, Kill, Ian

Playground Safety Score

✓ All Clear
Full profile for Killian →

Popularity Comparison

Killian Rank #370
Kylian Rank #459

Killian is more popular, ranked #370 vs #459 for Kylian.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Killian ___

  • Killian James
  • Killian Patrick
  • Killian Thomas
  • Killian Finn
  • Killian Rory
  • Killian Sean

Kylian ___

  • Kylian James
  • Kylian Patrick
  • Kylian Michael
  • Kylian Finn
  • Kylian Thomas
  • Kylian Joseph

Sibling Name Ideas

Names that pair well as siblings.

If you choose Killian

Cormac Riordan Aoife Declan Niamh

If you choose Kylian

Declan Finn Conor Saoirse Niamh

Which Name Fits Your Family?

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1. Which style feels more like your family?

Frequently Asked Questions

Is Killian or Kylian more popular?

Killian is more popular, ranked #370 compared to Kylian at #459 in the United States.

What do Killian and Kylian mean?

Killian means "associated with the church" (Irish Gaelic origin). Kylian means "strife, war" (Old Irish origin).

Are Killian and Kylian boy or girl names?

Killian is primarily a boy name. Kylian is primarily a boy name.

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← Full profile: Killian ← Full profile: Kylian Browse all baby names