Kylan vs Sullivan

Baby Name Comparison — 2026

Kylan

Boy #533 Most Popular 2 Syllables

Meaning

"narrow strait"

Origin: Scottish Gaelic

Cultural Roots

American Irish English

Quick Stats

Popularity Rank
#533
Total SSA Count
558
Syllables
2
Formality
Moderate
Nicknames
Ky

Playground Safety Score

✓ All Clear
Full profile for Kylan →

Popularity Comparison

Kylan Rank #533
Sullivan Rank #340

Sullivan is more popular, ranked #340 vs #533 for Kylan.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Kylan ___

  • Kylan James
  • Kylan Lee
  • Kylan Blake
  • Kylan Reed
  • Kylan Cole
  • Kylan Patrick

Sullivan ___

  • Sullivan James
  • Sullivan Patrick
  • Sullivan Thomas
  • Sullivan Reid
  • Sullivan Finn
  • Sullivan Grant

Sibling Name Ideas

Names that pair well as siblings.

If you choose Kylan

Kaylee Dylan Brennan Piper Rowan

If you choose Sullivan

Finnegan Declan Bridget Nora Callum

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 Kylan or Sullivan more popular?

Sullivan is more popular, ranked #340 compared to Kylan at #533 in the United States.

What do Kylan and Sullivan mean?

Kylan means "narrow strait" (Scottish Gaelic origin). Sullivan means "descendant of the dark one" (Irish Gaelic origin).

Are Kylan and Sullivan boy or girl names?

Kylan is primarily a boy name. Sullivan is primarily a boy name.

More Comparisons

Sullivan vs Kylan Kylan vs Marco Kylan vs Lionel Kylan vs Mathias Kylan vs Zayne
← Full profile: Kylan ← Full profile: Sullivan Browse all baby names