Mia vs Rio

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 →

Rio

Boy #517 Most Popular 2 Syllables

Meaning

"river"

Origin: Spanish/Portuguese

Cultural Roots

Spanish Portuguese Brazilian American

Quick Stats

Popularity Rank
#517
Total SSA Count
591
Syllables
2
Formality
Casual

Playground Safety Score

✓ All Clear
Full profile for Rio →

Popularity Comparison

Mia Rank #5
Rio Rank #517

Mia is more popular, ranked #5 vs #517 for Rio.

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

Rio ___

  • Rio James
  • Rio Alexander
  • Rio Sebastian
  • Rio Marcus
  • Rio Cruz
  • Rio Blue

Sibling Name Ideas

Names that pair well as siblings.

If you choose Mia

Liam Noah Sophia Olivia Ava

If you choose Rio

Finn Kai Luna Isla Milo

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 Rio more popular?

Mia is more popular, ranked #5 compared to Rio at #517 in the United States.

What do Mia and Rio mean?

Mia means "mine, beloved" (Scandinavian origin). Rio means "river" (Spanish/Portuguese origin).

Are Mia and Rio boy or girl names?

Mia is primarily a girl name. Rio is primarily a boy name.

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