Kacie vs Rio

Baby Name Comparison — 2026

Kacie

Girl #1,793 Most Popular 2 Syllables

Meaning

"vigilant, watchful in battle"

Origin: Irish Gaelic

Cultural Roots

American Irish English

Quick Stats

Popularity Rank
#1,793
Total SSA Count
112
Syllables
2
Formality
Casual
Nicknames
Kace

Playground Safety Score

✓ All Clear
Full profile for Kacie →

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

Kacie Rank #1,793
Rio Rank #517

Rio is more popular, ranked #517 vs #1793 for Kacie.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Kacie ___

  • Kacie Marie
  • Kacie Ann
  • Kacie Lynn
  • Kacie Jo
  • Kacie Lee
  • Kacie Elise

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 Kacie

Tyler Brady Logan Riley Hayley

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 Kacie or Rio more popular?

Rio is more popular, ranked #517 compared to Kacie at #1793 in the United States.

What do Kacie and Rio mean?

Kacie means "vigilant, watchful in battle" (Irish Gaelic origin). Rio means "river" (Spanish/Portuguese origin).

Are Kacie and Rio boy or girl names?

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

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