Liam vs Sidney

Baby Name Comparison — 2026

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

Liam Rank #1
Sidney Rank #1,374

Liam is more popular, ranked #1 vs #1374 for Sidney.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Liam ___

  • Liam James
  • Liam Alexander
  • Liam Thomas
  • Liam Michael
  • Liam Patrick
  • Liam Joseph

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 Liam

Olivia Emma Noah Charlotte Sophia

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 Liam or Sidney more popular?

Liam is more popular, ranked #1 compared to Sidney at #1374 in the United States.

What do Liam and Sidney mean?

Liam means "strong-willed warrior" (Irish origin). Sidney means "from Saint Denis" (Anglo-Norman French origin).

Are Liam and Sidney boy or girl names?

Liam is primarily a boy name. Sidney is primarily a boy name.

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