Onslow vs Opha

Baby Name Comparison — 2026

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
Full profile for Onslow →

Popularity Comparison

Onslow Rank #15,100
Opha Rank #14,959

Opha is more popular, ranked #14959 vs #15100 for Onslow.

Middle Name Pairings

Onslow ___

  • Onslow Frederick
  • Onslow George
  • Onslow James
  • Onslow Henry
  • Onslow Arthur

Opha ___

No pairings available yet.

Sibling Name Ideas

Names that pair well as siblings.

If you choose Onslow

Algernon Hortense Phineas Cordelia Rupert

If you choose Opha

No sibling data available yet.

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 Onslow or Opha more popular?

Opha is more popular, ranked #14959 compared to Onslow at #15100 in the United States.

What do Onslow and Opha mean?

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

Are Onslow and Opha boy or girl names?

Onslow is primarily a boy name. Opha is primarily a boy name.

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