Caitlin vs Oliver

Baby Name Comparison — 2026

Caitlin

Girl #1,686 Most Popular 2 Syllables

Meaning

"pure, clear"

Origin: Greek via Irish

Cultural Roots

Irish Welsh American English Australian

Quick Stats

Popularity Rank
#1,686
Total SSA Count
121
Syllables
2
Formality
Moderate
Nicknames
Cait, Kate, Katie

Playground Safety Score

✓ All Clear
Full profile for Caitlin →

Oliver

Boy #3 Most Popular 3 Syllables

Meaning

"olive tree"

Origin: Latin

Cultural Roots

English French Scandinavian

Quick Stats

Popularity Rank
#3
Total SSA Count
15,343
Syllables
3
Formality
Moderate
Nicknames
Ollie, Oli

Playground Safety Score

✓ All Clear
Full profile for Oliver →

Popularity Comparison

Caitlin Rank #1,686
Oliver Rank #3

Oliver is more popular, ranked #3 vs #1686 for Caitlin.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Caitlin ___

  • Caitlin Marie
  • Caitlin Ann
  • Caitlin Elizabeth
  • Caitlin Rose
  • Caitlin Grace
  • Caitlin Louise

Oliver ___

  • Oliver James
  • Oliver Thomas
  • Oliver William
  • Oliver Henry
  • Oliver John
  • Oliver Benjamin

Sibling Name Ideas

Names that pair well as siblings.

If you choose Caitlin

Siobhan Fiona Ciara Declan Conor

If you choose Oliver

Olivia Charlotte Emma Sophia Amelia

Which Name Fits Your Family?

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1. Which style feels more like your family?

Frequently Asked Questions

Is Caitlin or Oliver more popular?

Oliver is more popular, ranked #3 compared to Caitlin at #1686 in the United States.

What do Caitlin and Oliver mean?

Caitlin means "pure, clear" (Greek via Irish origin). Oliver means "olive tree" (Latin origin).

Are Caitlin and Oliver boy or girl names?

Caitlin is primarily a girl name. Oliver is primarily a boy name.

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← Full profile: Caitlin ← Full profile: Oliver Browse all baby names