Caitlyn vs Olivia

Baby Name Comparison — 2026

Caitlyn

Girl #2,348 Most Popular 2 Syllables

Meaning

"pure, unblemished"

Origin: Greek via Irish

Cultural Roots

Irish Welsh American British

Quick Stats

Popularity Rank
#2,348
Total SSA Count
78
Syllables
2
Formality
Moderate
Nicknames
Cait, Kate, Katie

Playground Safety Score

✓ All Clear
Full profile for Caitlyn →

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

Caitlyn Rank #2,348
Olivia Rank #1

Olivia is more popular, ranked #1 vs #2348 for Caitlyn.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Caitlyn ___

  • Caitlyn Grace
  • Caitlyn Rose
  • Caitlyn Marie
  • Caitlyn Lynn
  • Caitlyn Anne
  • Caitlyn Jane

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 Caitlyn

Brendan Declan Siobhan Aoife Niamh

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 Caitlyn or Olivia more popular?

Olivia is more popular, ranked #1 compared to Caitlyn at #2348 in the United States.

What do Caitlyn and Olivia mean?

Caitlyn means "pure, unblemished" (Greek via Irish origin). Olivia means "olive tree" (Latin origin).

Are Caitlyn and Olivia boy or girl names?

Caitlyn is primarily a girl name. Olivia is primarily a girl name.

More Comparisons

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