Keiran vs Olivia

Baby Name Comparison — 2026

Keiran

Boy #5,092 Most Popular 2 Syllables

Meaning

"dark one, little dark one"

Origin: Irish

Cultural Roots

Irish Scottish English Australian

Quick Stats

Popularity Rank
#5,092
Total SSA Count
19
Syllables
2
Formality
Moderate
Nicknames
Kei, Keri

Playground Safety Score

✓ All Clear
Full profile for Keiran →

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

Keiran Rank #5,092
Olivia Rank #1

Olivia is more popular, ranked #1 vs #5092 for Keiran.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Keiran ___

  • Keiran James
  • Keiran Patrick
  • Keiran Thomas
  • Keiran Michael
  • Keiran Liam
  • Keiran Sean

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 Keiran

Declan Fiona Niamh Ronan Aoife

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 Keiran or Olivia more popular?

Olivia is more popular, ranked #1 compared to Keiran at #5092 in the United States.

What do Keiran and Olivia mean?

Keiran means "dark one, little dark one" (Irish origin). Olivia means "olive tree" (Latin origin).

Are Keiran and Olivia boy or girl names?

Keiran is primarily a boy name. Olivia is primarily a girl name.

More Comparisons

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