Kai vs Milo

Baby Name Comparison — 2026

Kai

Boy #76 Most Popular 1 Syllable

Meaning

"sea"

Origin: Hawaiian

Cultural Roots

Hawaiian Scandinavian Japanese American Chinese

Quick Stats

Popularity Rank
#76
Total SSA Count
4,276
Syllables
1
Formality
Casual

Playground Safety Score

✓ All Clear
Full profile for Kai →

Milo

Boy #120 Most Popular 2 Syllables

Meaning

"soldier, merciful"

Origin: Germanic

Cultural Roots

English German American Australian

Quick Stats

Popularity Rank
#120
Total SSA Count
2,988
Syllables
2
Formality
Casual
Nicknames
Mi

Playground Safety Score

✓ All Clear
Full profile for Milo →

Popularity Comparison

Kai Rank #76
Milo Rank #120

Kai is more popular, ranked #76 vs #120 for Milo.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Kai ___

  • Kai James
  • Kai Alexander
  • Kai Michael
  • Kai Robert
  • Kai William
  • Kai Thomas

Milo ___

  • Milo James
  • Milo Thomas
  • Milo Reid
  • Milo Fox
  • Milo Bear
  • Milo Gray

Sibling Name Ideas

Names that pair well as siblings.

If you choose Kai

Zara Nova Mila Leo Finn

If you choose Milo

Arlo Finn Piper Luna Hazel

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 Kai or Milo more popular?

Kai is more popular, ranked #76 compared to Milo at #120 in the United States.

What do Kai and Milo mean?

Kai means "sea" (Hawaiian origin). Milo means "soldier, merciful" (Germanic origin).

Are Kai and Milo boy or girl names?

Kai is primarily a boy name. Milo is primarily a boy name.

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← Full profile: Kai ← Full profile: Milo Browse all baby names