Costello vs Oliver

Baby Name Comparison — 2026

Costello

Boy #30,452 Most Popular

Quick Stats

Popularity Rank: #30,452
Total SSA Count: 5
Nicknames: Cos, Cost, Costy

Playground Safety Score

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Similar Names

Eversyn Trafton Jarry Lito

Full profile for Costello →

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

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Similar Names

Sebastian Parker Alexander Miles

Full profile for Oliver →

Popularity Comparison

Costello Rank #30,452

Oliver Rank #3

Oliver is more popular, ranked #3 vs #30452 for Costello.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Costello ___

No pairings available yet.

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 Costello

No sibling data available yet.

If you choose Oliver

Olivia Charlotte Emma Sophia Amelia

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 Costello or Oliver more popular?

Oliver is more popular, ranked #3 compared to Costello at #30452 in the United States.

What do Costello and Oliver mean?

Oliver means "olive tree" (Latin origin).

Are Costello and Oliver boy or girl names?

Costello is primarily a boy name. Oliver is primarily a boy name.

More Comparisons

Oliver vs Costello Costello vs Eversyn Costello vs Trafton Costello vs Jarry Costello vs Lito

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