Fiona vs Olivia

Baby Name Comparison — 2026

Fiona

Girl #406 Most Popular 3 Syllables

Meaning

"fair, white, pure"

Origin: Scottish Gaelic

Cultural Roots

Scottish Irish English Gaelic

Quick Stats

Popularity Rank
#406
Total SSA Count
782
Syllables
3
Formality
Moderate
Nicknames
Fi, Fifi

Playground Safety Score

✓ All Clear
Full profile for Fiona →

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

Fiona Rank #406
Olivia Rank #1

Olivia is more popular, ranked #1 vs #406 for Fiona.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Fiona ___

  • Fiona Rose
  • Fiona Grace
  • Fiona Claire
  • Fiona Jane
  • Fiona Maeve
  • Fiona Kate

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 Fiona

Seamus Aoife Declan Siobhan Finley

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 Fiona or Olivia more popular?

Olivia is more popular, ranked #1 compared to Fiona at #406 in the United States.

What do Fiona and Olivia mean?

Fiona means "fair, white, pure" (Scottish Gaelic origin). Olivia means "olive tree" (Latin origin).

Are Fiona and Olivia boy or girl names?

Fiona is primarily a girl name. Olivia is primarily a girl name.

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