Niamh vs Olivia

Baby Name Comparison — 2026

Niamh

Girl #3,133 Most Popular 1 Syllable

Meaning

"bright, radiant, lustrous"

Origin: Old Irish

Cultural Roots

Irish Scottish Gaelic Celtic

Quick Stats

Popularity Rank
#3,133
Total SSA Count
51
Syllables
1
Formality
Moderate
Nicknames
Nia, Niy, Niie

Playground Safety Score

✓ All Clear
Full profile for Niamh →

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

Niamh Rank #3,133
Olivia Rank #1

Olivia is more popular, ranked #1 vs #3133 for Niamh.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Niamh ___

  • Niamh Rose
  • Niamh Clare
  • Niamh Grace
  • Niamh Maeve
  • Niamh Siobhan
  • Niamh Brigid

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 Niamh

Ciarán Fionnuala Roisín Seán Áine

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 Niamh or Olivia more popular?

Olivia is more popular, ranked #1 compared to Niamh at #3133 in the United States.

What do Niamh and Olivia mean?

Niamh means "bright, radiant, lustrous" (Old Irish origin). Olivia means "olive tree" (Latin origin).

Are Niamh and Olivia boy or girl names?

Niamh is primarily a girl name. Olivia is primarily a girl name.

More Comparisons

Olivia vs Niamh Niamh vs Bloom Niamh vs Maleni Niamh vs Alea Niamh vs Ziora
← Full profile: Niamh ← Full profile: Olivia Browse all baby names