Arlene vs Sidney

Baby Name Comparison — 2026

Arlene

Girl #1,817 Most Popular 2 Syllables

Meaning

"pledge, oath"

Origin: Irish/Gaelic

Cultural Roots

Irish American English

Quick Stats

Popularity Rank
#1,817
Total SSA Count
111
Syllables
2
Formality
Moderate
Nicknames
Arly, Arlie, Lena

Playground Safety Score

✓ All Clear
Full profile for Arlene →

Sidney

Boy #1,374 Most Popular 2 Syllables

Meaning

"from Saint Denis"

Origin: Anglo-Norman French

Cultural Roots

English American Australian

Quick Stats

Popularity Rank
#1,374
Total SSA Count
137
Syllables
2
Formality
Moderate
Nicknames
Sid

Playground Safety Score

✓ All Clear
Full profile for Sidney →

Popularity Comparison

Arlene Rank #1,817
Sidney Rank #1,374

Sidney is more popular, ranked #1374 vs #1817 for Arlene.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Arlene ___

  • Arlene Marie
  • Arlene Rose
  • Arlene Jean
  • Arlene Ann
  • Arlene Louise
  • Arlene Kay

Sidney ___

  • Sidney James
  • Sidney Charles
  • Sidney Arthur
  • Sidney George
  • Sidney Philip
  • Sidney Thomas

Sibling Name Ideas

Names that pair well as siblings.

If you choose Arlene

Shirley Beverly Donna Gary Dennis

If you choose Sidney

Shelby Beverly Evelyn Reginald Stanley

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 Arlene or Sidney more popular?

Sidney is more popular, ranked #1374 compared to Arlene at #1817 in the United States.

What do Arlene and Sidney mean?

Arlene means "pledge, oath" (Irish/Gaelic origin). Sidney means "from Saint Denis" (Anglo-Norman French origin).

Are Arlene and Sidney boy or girl names?

Arlene is primarily a girl name. Sidney is primarily a boy name.

More Comparisons

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← Full profile: Arlene ← Full profile: Sidney Browse all baby names