Billy vs Millie

Baby Name Comparison — 2026

Billy

Boy #1,051 Most Popular 2 Syllables

Meaning

"resolute protector"

Origin: Old German via Norman French

Cultural Roots

English American Australian Irish

Quick Stats

Popularity Rank: #1,051
Total SSA Count: 210
Syllables: 2
Formality: Casual

Playground Safety Score

✓ All Clear

Similar Names

Minnie Lillie Millie Birdie

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Millie

Girl #86 Most Popular 2 Syllables

Meaning

"strength, work"

Origin: Old Germanic (diminutive of Millicent)

Cultural Roots

English American Australian

Quick Stats

Popularity Rank: #86
Total SSA Count: 2,910
Syllables: 2
Formality: Casual

Playground Safety Score

✓ All Clear

Similar Names

Minnie Lillie Maggie Mollie

Full profile for Millie →

Popularity Comparison

Billy Rank #1,051

Millie Rank #86

Millie is more popular, ranked #86 vs #1051 for Billy.

Frequently Asked Questions

Is Billy or Millie more popular?

Millie is more popular, ranked #86 compared to Billy at #1051 in the United States.

What do Billy and Millie mean?

Billy means "resolute protector" (Old German via Norman French origin). Millie means "strength, work" (Old Germanic (diminutive of Millicent) origin).

Are Billy and Millie boy or girl names?

Billy is primarily a boy name. Millie is primarily a girl name.

More Comparisons

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