Fallon vs Kilyan

Baby Name Comparison — 2026

Fallon

Girl #736 Most Popular 2 Syllables

Meaning

"descendant of a ruler"

Origin: Irish Gaelic

Cultural Roots

Irish English American

Quick Stats

Popularity Rank
#736
Total SSA Count
382
Syllables
2
Formality
Moderate
Nicknames
Fal, Fallie, Lonnie

Playground Safety Score

✓ All Clear
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Kilyan

Boy #4,586 Most Popular 3 Syllables

Meaning

"church, monastic cell"

Origin: Irish Gaelic

Cultural Roots

Irish French German English

Quick Stats

Popularity Rank
#4,586
Total SSA Count
22
Syllables
3
Formality
Moderate
Nicknames
Kil, Killy, Ian

Playground Safety Score

✓ All Clear
Full profile for Kilyan →

Popularity Comparison

Fallon Rank #736
Kilyan Rank #4,586

Fallon is more popular, ranked #736 vs #4586 for Kilyan.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Fallon ___

  • Fallon Grace
  • Fallon Rose
  • Fallon Marie
  • Fallon Elise
  • Fallon Hope
  • Fallon Quinn

Kilyan ___

  • Kilyan James
  • Kilyan Patrick
  • Kilyan Flynn
  • Kilyan Beau
  • Kilyan Cole
  • Kilyan Sean

Sibling Name Ideas

Names that pair well as siblings.

If you choose Fallon

Reagan Blake Rowan Quinn Tiernan

If you choose Kilyan

Cillian Declan Riordan Finola Saoirse

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 Fallon or Kilyan more popular?

Fallon is more popular, ranked #736 compared to Kilyan at #4586 in the United States.

What do Fallon and Kilyan mean?

Fallon means "descendant of a ruler" (Irish Gaelic origin). Kilyan means "church, monastic cell" (Irish Gaelic origin).

Are Fallon and Kilyan boy or girl names?

Fallon is primarily a girl name. Kilyan is primarily a boy name.

More Comparisons

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← Full profile: Fallon ← Full profile: Kilyan Browse all baby names