Moira vs Olivia

Baby Name Comparison — 2026

Moira

Girl #1,902 Most Popular 2 Syllables

Meaning

"fate, destiny"

Origin: Greek

Cultural Roots

Irish Scottish Greek English

Quick Stats

Popularity Rank
#1,902
Total SSA Count
105
Syllables
2
Formality
Moderate
Nicknames
Mo, Moi

Playground Safety Score

✓ All Clear
Full profile for Moira →

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

Moira Rank #1,902
Olivia Rank #1

Olivia is more popular, ranked #1 vs #1902 for Moira.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Moira ___

  • Moira Rose
  • Moira Grace
  • Moira Anne
  • Moira Claire
  • Moira Jean
  • Moira Kathleen

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 Moira

Fiona Brigid Siobhan Conor Finn

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 Moira or Olivia more popular?

Olivia is more popular, ranked #1 compared to Moira at #1902 in the United States.

What do Moira and Olivia mean?

Moira means "fate, destiny" (Greek origin). Olivia means "olive tree" (Latin origin).

Are Moira and Olivia boy or girl names?

Moira is primarily a girl name. Olivia is primarily a girl name.

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