Rylan vs Sullivan

Baby Name Comparison — 2026

Sullivan

Boy #340 Most Popular 3 Syllables

Meaning

"descendant of the dark one"

Origin: Irish Gaelic

Cultural Roots

Irish American English

Quick Stats

Popularity Rank
#340
Total SSA Count
1,011
Syllables
3
Formality
Moderate
Nicknames
Sully, Van

Playground Safety Score

✓ All Clear
Full profile for Sullivan →

Popularity Comparison

Rylan Rank #372
Sullivan Rank #340

Sullivan is more popular, ranked #340 vs #372 for Rylan.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Rylan ___

  • Rylan James
  • Rylan Cole
  • Rylan Scott
  • Rylan Thomas
  • Rylan Lee
  • Rylan Grant

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 Rylan

Caden Logan Hayden Paisley Peyton

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 Rylan or Sullivan more popular?

Sullivan is more popular, ranked #340 compared to Rylan at #372 in the United States.

What do Rylan and Sullivan mean?

Rylan means "land where rye grows" (Old English origin). Sullivan means "descendant of the dark one" (Irish Gaelic origin).

Are Rylan and Sullivan boy or girl names?

Rylan is primarily a boy name. Sullivan is primarily a boy name.

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← Full profile: Rylan ← Full profile: Sullivan Browse all baby names