Izzy vs Sullivan

Baby Name Comparison — 2026

Izzy

Girl #2,108 Most Popular 2 Syllables

Meaning

"God is my oath"

Origin: Hebrew

Cultural Roots

English American Jewish

Quick Stats

Popularity Rank
#2,108
Total SSA Count
91
Syllables
2
Formality
Casual
Nicknames
Iz

Playground Safety Score

✓ All Clear
Full profile for Izzy →

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

Izzy Rank #2,108
Sullivan Rank #340

Sullivan is more popular, ranked #340 vs #2108 for Izzy.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Izzy ___

  • Izzy Rose
  • Izzy Mae
  • Izzy Jane
  • Izzy Claire
  • Izzy Grace
  • Izzy Wren

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 Izzy

Milo Leo Bella Rosie Archie

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 Izzy or Sullivan more popular?

Sullivan is more popular, ranked #340 compared to Izzy at #2108 in the United States.

What do Izzy and Sullivan mean?

Izzy means "God is my oath" (Hebrew origin). Sullivan means "descendant of the dark one" (Irish Gaelic origin).

Are Izzy and Sullivan boy or girl names?

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

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