Courtney 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

Courtney Rank #1,992
Sullivan Rank #340

Sullivan is more popular, ranked #340 vs #1992 for Courtney.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Courtney ___

  • Courtney Marie
  • Courtney Anne
  • Courtney Elizabeth
  • Courtney Lee
  • Courtney Nicole
  • Courtney Lynn

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 Courtney

Brittany Ashley Tyler Brandon Morgan

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 Courtney or Sullivan more popular?

Sullivan is more popular, ranked #340 compared to Courtney at #1992 in the United States.

What do Courtney and Sullivan mean?

Courtney means "from the domain of Curtius" (Norman French origin). Sullivan means "descendant of the dark one" (Irish Gaelic origin).

Are Courtney and Sullivan boy or girl names?

Courtney is primarily a girl name. Sullivan is primarily a boy name.

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