Caitlyn vs Mia

Baby Name Comparison — 2026

Caitlyn

Girl #2,348 Most Popular 2 Syllables

Meaning

"pure, unblemished"

Origin: Greek via Irish

Cultural Roots

Irish Welsh American British

Quick Stats

Popularity Rank
#2,348
Total SSA Count
78
Syllables
2
Formality
Moderate
Nicknames
Cait, Kate, Katie

Playground Safety Score

✓ All Clear
Full profile for Caitlyn →

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 →

Popularity Comparison

Caitlyn Rank #2,348
Mia Rank #5

Mia is more popular, ranked #5 vs #2348 for Caitlyn.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Caitlyn ___

  • Caitlyn Grace
  • Caitlyn Rose
  • Caitlyn Marie
  • Caitlyn Lynn
  • Caitlyn Anne
  • Caitlyn Jane

Mia ___

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

Sibling Name Ideas

Names that pair well as siblings.

If you choose Caitlyn

Brendan Declan Siobhan Aoife Niamh

If you choose Mia

Liam Noah Sophia Olivia Ava

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 Caitlyn or Mia more popular?

Mia is more popular, ranked #5 compared to Caitlyn at #2348 in the United States.

What do Caitlyn and Mia mean?

Caitlyn means "pure, unblemished" (Greek via Irish origin). Mia means "mine, beloved" (Scandinavian origin).

Are Caitlyn and Mia boy or girl names?

Caitlyn is primarily a girl name. Mia is primarily a girl name.

More Comparisons

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← Full profile: Caitlyn ← Full profile: Mia Browse all baby names