Liam vs Theo

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
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Theo

Boy #80 Most Popular 2 Syllables

Meaning

"gift of God"

Origin: Greek (theodoros)

Cultural Roots

English Greek French German American

Quick Stats

Popularity Rank
#80
Total SSA Count
4,110
Syllables
2
Formality
Moderate

Playground Safety Score

✓ All Clear
Full profile for Theo →

Popularity Comparison

Liam Rank #1
Theo Rank #80

Liam is more popular, ranked #1 vs #80 for Theo.

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

Theo ___

  • Theo James
  • Theo William
  • Theo Alexander
  • Theo Samuel
  • Theo Felix
  • Theo August

Sibling Name Ideas

Names that pair well as siblings.

If you choose Liam

Olivia Emma Noah Charlotte Sophia

If you choose Theo

Oliver Felix Eleanor Beatrice Arthur

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 Theo more popular?

Liam is more popular, ranked #1 compared to Theo at #80 in the United States.

What do Liam and Theo mean?

Liam means "strong-willed warrior" (Irish origin). Theo means "gift of God" (Greek (theodoros) origin).

Are Liam and Theo boy or girl names?

Liam is primarily a boy name. Theo is primarily a boy name.

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