Kaci vs Liam

Baby Name Comparison — 2026

Kaci

Girl #2,070 Most Popular 2 Syllables

Meaning

"alert, watchful in battle"

Origin: Irish Gaelic

Cultural Roots

American Irish English

Quick Stats

Popularity Rank
#2,070
Total SSA Count
93
Syllables
2
Formality
Casual
Nicknames
Kace

Playground Safety Score

✓ All Clear
Full profile for Kaci →

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 →

Popularity Comparison

Kaci Rank #2,070
Liam Rank #1

Liam is more popular, ranked #1 vs #2070 for Kaci.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Kaci ___

  • Kaci Lynn
  • Kaci Marie
  • Kaci Ann
  • Kaci Grace
  • Kaci Nicole
  • Kaci Lee

Liam ___

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

Sibling Name Ideas

Names that pair well as siblings.

If you choose Kaci

Brady Tatum Riley Dylan Morgan

If you choose Liam

Olivia Emma Noah Charlotte Sophia

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 Kaci or Liam more popular?

Liam is more popular, ranked #1 compared to Kaci at #2070 in the United States.

What do Kaci and Liam mean?

Kaci means "alert, watchful in battle" (Irish Gaelic origin). Liam means "strong-willed warrior" (Irish origin).

Are Kaci and Liam boy or girl names?

Kaci is primarily a girl name. Liam is primarily a boy name.

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