Callaghan vs Olivia

Baby Name Comparison — 2026

Olivia

Girl #1 Most Popular 4 Syllables

Meaning

"olive tree"

Origin: Latin

Cultural Roots

English Italian American

Quick Stats

Popularity Rank
#1
Total SSA Count
14,718
Syllables
4
Formality
Moderate
Nicknames
Liv, Livvy, Oli

Playground Safety Score

✓ All Clear
Full profile for Olivia →

Popularity Comparison

Callaghan Rank #3,457
Olivia Rank #1

Olivia is more popular, ranked #1 vs #3457 for Callaghan.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Callaghan ___

  • Callaghan James
  • Callaghan Patrick
  • Callaghan Sean
  • Callaghan Brendan
  • Callaghan Michael
  • Callaghan Thomas

Olivia ___

  • Olivia Rose
  • Olivia Grace
  • Olivia Jane
  • Olivia Mae
  • Olivia Claire
  • Olivia Jade

Sibling Name Ideas

Names that pair well as siblings.

If you choose Callaghan

Finnegan Declan Brigid Siobhan Kieran

If you choose Olivia

Liam Noah Charlotte Emma Sophia

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 Callaghan or Olivia more popular?

Olivia is more popular, ranked #1 compared to Callaghan at #3457 in the United States.

What do Callaghan and Olivia mean?

Callaghan means "lover of churches" (Irish Gaelic origin). Olivia means "olive tree" (Latin origin).

Are Callaghan and Olivia boy or girl names?

Callaghan is primarily a boy name. Olivia is primarily a girl name.

More Comparisons

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← Full profile: Callaghan ← Full profile: Olivia Browse all baby names