Liam vs Lucas

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 →

Lucas

Boy #9 Most Popular 2 Syllables

Meaning

"from Lucania"

Origin: Latin

Cultural Roots

English Spanish Portuguese

Quick Stats

Popularity Rank
#9
Total SSA Count
10,703
Syllables
2
Formality
Moderate
Nicknames
Luke, Luc

Playground Safety Score

✓ All Clear
Full profile for Lucas →

Popularity Comparison

Liam Rank #1
Lucas Rank #9

Liam is more popular, ranked #1 vs #9 for Lucas.

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

Lucas ___

  • Lucas James
  • Lucas Alexander
  • Lucas Thomas
  • Lucas William
  • Lucas Henry
  • Lucas Oliver

Sibling Name Ideas

Names that pair well as siblings.

If you choose Liam

Olivia Emma Noah Charlotte Sophia

If you choose Lucas

Olivia Emma Sophia Liam Noah

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 Lucas more popular?

Liam is more popular, ranked #1 compared to Lucas at #9 in the United States.

What do Liam and Lucas mean?

Liam means "strong-willed warrior" (Irish origin). Lucas means "from Lucania" (Latin origin).

Are Liam and Lucas boy or girl names?

Liam is primarily a boy name. Lucas is primarily a boy name.

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