Kaci vs Olivia

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 →

Olivia

Girl #1 Most Popular 4 Syllables

Meaning

"olive tree"

Origin: Latin

Cultural Roots

English Italian American

Quick Stats

Popularity Rank
#1
Total SSA Count
14,718
Syllables
4
Formality
Moderate
Nicknames
Liv, Livvy, Oli

Playground Safety Score

✓ All Clear
Full profile for Olivia →

Popularity Comparison

Kaci Rank #2,070
Olivia Rank #1

Olivia 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

Olivia ___

  • Olivia Rose
  • Olivia Grace
  • Olivia Jane
  • Olivia Mae
  • Olivia Claire
  • Olivia Jade

Sibling Name Ideas

Names that pair well as siblings.

If you choose Kaci

Brady Tatum Riley Dylan Morgan

If you choose Olivia

Liam Noah Charlotte Emma 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 Olivia more popular?

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

What do Kaci and Olivia mean?

Kaci means "alert, watchful in battle" (Irish Gaelic origin). Olivia means "olive tree" (Latin origin).

Are Kaci and Olivia boy or girl names?

Kaci is primarily a girl name. Olivia is primarily a girl name.

More Comparisons

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