Killian vs Nico

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 →

Nico

Boy #212 Most Popular 2 Syllables

Meaning

"victory of the people"

Origin: Greek

Cultural Roots

Italian German Spanish Greek American

Quick Stats

Popularity Rank
#212
Total SSA Count
1,678
Syllables
2
Formality
Moderate
Nicknames
Ni

Playground Safety Score

✓ All Clear
Full profile for Nico →

Popularity Comparison

Killian Rank #370
Nico Rank #212

Nico is more popular, ranked #212 vs #370 for Killian.

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

Nico ___

  • Nico James
  • Nico Alexander
  • Nico Thomas
  • Nico Rafael
  • Nico Luca
  • Nico Mateo

Sibling Name Ideas

Names that pair well as siblings.

If you choose Killian

Cormac Riordan Aoife Declan Niamh

If you choose Nico

Leo Luca Marco Sofia Mia

Which Name Fits Your Family?

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1. Which style feels more like your family?

Frequently Asked Questions

Is Killian or Nico more popular?

Nico is more popular, ranked #212 compared to Killian at #370 in the United States.

What do Killian and Nico mean?

Killian means "associated with the church" (Irish Gaelic origin). Nico means "victory of the people" (Greek origin).

Are Killian and Nico boy or girl names?

Killian is primarily a boy name. Nico is primarily a boy name.

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