Caitlin vs Mia

Baby Name Comparison — 2026

Caitlin

Girl #1,686 Most Popular 2 Syllables

Meaning

"pure, clear"

Origin: Greek via Irish

Cultural Roots

Irish Welsh American English Australian

Quick Stats

Popularity Rank
#1,686
Total SSA Count
121
Syllables
2
Formality
Moderate
Nicknames
Cait, Kate, Katie

Playground Safety Score

✓ All Clear
Full profile for Caitlin →

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

Caitlin Rank #1,686
Mia Rank #5

Mia is more popular, ranked #5 vs #1686 for Caitlin.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Caitlin ___

  • Caitlin Marie
  • Caitlin Ann
  • Caitlin Elizabeth
  • Caitlin Rose
  • Caitlin Grace
  • Caitlin Louise

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 Caitlin

Siobhan Fiona Ciara Declan Conor

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 Caitlin or Mia more popular?

Mia is more popular, ranked #5 compared to Caitlin at #1686 in the United States.

What do Caitlin and Mia mean?

Caitlin means "pure, clear" (Greek via Irish origin). Mia means "mine, beloved" (Scandinavian origin).

Are Caitlin and Mia boy or girl names?

Caitlin is primarily a girl name. Mia is primarily a girl name.

More Comparisons

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