Caselyn vs Olivia

Baby Name Comparison — 2026

Caselyn

Girl #18,432 Most Popular

Quick Stats

Popularity Rank: #18,432
Total SSA Count: 7
Nicknames: Cas, Case, Casey

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Similar Names

Crawford Ambellina Hadlei Athira

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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

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Similar Names

Brianna Ella Hailey Allison

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Popularity Comparison

Caselyn Rank #18,432

Olivia Rank #1

Olivia is more popular, ranked #1 vs #18432 for Caselyn.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Caselyn ___

No pairings available yet.

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 Caselyn

No sibling data available yet.

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 Caselyn or Olivia more popular?

Olivia is more popular, ranked #1 compared to Caselyn at #18432 in the United States.

What do Caselyn and Olivia mean?

Olivia means "olive tree" (Latin origin).

Are Caselyn and Olivia boy or girl names?

Caselyn is primarily a girl name. Olivia is primarily a girl name.

More Comparisons

Olivia vs Caselyn Caselyn vs Crawford Caselyn vs Ambellina Caselyn vs Hadlei Caselyn vs Athira

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