Mia vs Niamh

Baby Name Comparison — 2026

Mia

Girl #5 Most Popular 2 Syllables

Meaning

"mine, beloved"

Origin: Scandinavian

Cultural Roots

Italian Scandinavian Spanish

Quick Stats

Popularity Rank
#5
Total SSA Count
12,113
Syllables
2
Formality
Casual

Playground Safety Score

✓ All Clear
Full profile for Mia →

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 →

Popularity Comparison

Mia Rank #5
Niamh Rank #3,133

Mia is more popular, ranked #5 vs #3133 for Niamh.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Mia ___

  • Mia Rose
  • Mia Grace
  • Mia Jane
  • Mia Claire
  • Mia Elizabeth
  • Mia Louise

Niamh ___

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

Sibling Name Ideas

Names that pair well as siblings.

If you choose Mia

Liam Noah Sophia Olivia Ava

If you choose Niamh

Ciarán Fionnuala Roisín Seán Áine

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 Mia or Niamh more popular?

Mia is more popular, ranked #5 compared to Niamh at #3133 in the United States.

What do Mia and Niamh mean?

Mia means "mine, beloved" (Scandinavian origin). Niamh means "bright, radiant, lustrous" (Old Irish origin).

Are Mia and Niamh boy or girl names?

Mia is primarily a girl name. Niamh is primarily a girl name.

More Comparisons

Niamh vs Mia Mia vs Aria Mia vs Ailany Mia vs Olivia Mia vs Juliette
← Full profile: Mia ← Full profile: Niamh Browse all baby names