Casie vs Onslow

Baby Name Comparison — 2026

Casie

Boy #15,263 Most Popular

Quick Stats

Popularity Rank: #15,263
Total SSA Count: 7
Nicknames: Cas, Cay, Caie

Playground Safety Score

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Similar Names

Amy Tully Aymeric

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Onslow

Boy #15,100 Most Popular 2 Syllables

Meaning

"Ōn's hill; from the hill of Ōn"

Origin: Old English

Cultural Roots

English British

Quick Stats

Popularity Rank: #15,100
Total SSA Count: 7
Syllables: 2
Formality: Formal
Nicknames: Ons

Playground Safety Score

✓ All Clear

Similar Names

Andarius Dasmine Tully Aymeric

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Popularity Comparison

Casie Rank #15,263

Onslow Rank #15,100

Onslow is more popular, ranked #15100 vs #15263 for Casie.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Casie ___

No pairings available yet.

Onslow ___

Onslow Frederick
Onslow George
Onslow James
Onslow Henry
Onslow Arthur

Sibling Name Ideas

Names that pair well as siblings.

If you choose Casie

No sibling data available yet.

If you choose Onslow

Algernon Hortense Phineas Cordelia Rupert

Which Name Fits Your Family?

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1. Which style feels more like your family?

Frequently Asked Questions

Is Casie or Onslow more popular?

Onslow is more popular, ranked #15100 compared to Casie at #15263 in the United States.

What do Casie and Onslow mean?

Onslow means "Ōn's hill; from the hill of Ōn" (Old English origin).

Are Casie and Onslow boy or girl names?

Casie is primarily a boy name. Onslow is primarily a boy name.

More Comparisons

Onslow vs Casie Casie vs Amy Casie vs Tully Casie vs Aymeric Casie vs Andarius

← Full profile: Casie ← Full profile: Onslow Browse all baby names