Liam vs Sid

Baby Name Comparison — 2026

Liam

Boy #1 Most Popular 2 Syllables

Meaning

"strong-willed warrior"

Origin: Irish

Cultural Roots

Irish English American

Quick Stats

Popularity Rank
#1
Total SSA Count
22,164
Syllables
2
Formality
Moderate
Nicknames
Lee

Playground Safety Score

✓ All Clear
Full profile for Liam →

Sid

Boy #4,636 Most Popular 1 Syllable

Meaning

"wide meadow, wide island"

Origin: Old English

Cultural Roots

English American British

Quick Stats

Popularity Rank
#4,636
Total SSA Count
22
Syllables
1
Formality
Casual

Playground Safety Score

✓ All Clear
Full profile for Sid →

Popularity Comparison

Liam Rank #1
Sid Rank #4,636

Liam is more popular, ranked #1 vs #4636 for Sid.

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

Sid ___

  • Sid James
  • Sid Thomas
  • Sid Allen
  • Sid Ray
  • Sid Lee
  • Sid Wayne

Sibling Name Ideas

Names that pair well as siblings.

If you choose Liam

Olivia Emma Noah Charlotte Sophia

If you choose Sid

Ned Fred Ted Gus Lou

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 Sid more popular?

Liam is more popular, ranked #1 compared to Sid at #4636 in the United States.

What do Liam and Sid mean?

Liam means "strong-willed warrior" (Irish origin). Sid means "wide meadow, wide island" (Old English origin).

Are Liam and Sid boy or girl names?

Liam is primarily a boy name. Sid is primarily a boy name.

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