Millie vs Billy

Baby Name Comparison — 2026

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 →

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

Full profile for Billy →

Popularity Comparison

Millie Rank #86

Billy Rank #1,051

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

Frequently Asked Questions

Is Millie or Billy more popular?

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

What do Millie and Billy mean?

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

Are Millie and Billy boy or girl names?

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

More Comparisons

Billy vs Millie Millie vs Minnie Millie vs Lillie Millie vs Maggie Millie vs Mollie

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