Back to Baby Names

Dean vs Leo

Baby Name Comparison — 2026

Dean

Boy #142 Most Popular 1 Syllable

Meaning

"church official overseeing ten"

Origin: Latin decanus

Cultural Roots

English American

Quick Stats

Popularity Rank
#142
Total SSA Count
2,545
Syllables
1
Formality
Moderate

Playground Safety Score

15 High Risk

{:type=>:rhyme, :severity=>:medium, :message=>"'Dean' rhymes with 'mean'"}

Similar Names

Leo

Boy #24 Most Popular 2 Syllables

Meaning

"lion-hearted, brave"

Origin: Latin

Cultural Roots

English Italian German French American Spanish

Quick Stats

Popularity Rank
#24
Total SSA Count
7,793
Syllables
2
Formality
Casual

Playground Safety Score

All Clear

Similar Names

Popularity Comparison

Dean Rank #142
Leo Rank #24

Leo is more popular, ranked #24 vs #142 for Dean.

Frequently Asked Questions

Is Dean or Leo more popular?

Leo is more popular, ranked #24 compared to Dean at #142 in the United States.

What do Dean and Leo mean?

Dean means "church official overseeing ten" (Latin decanus origin). Leo means "lion-hearted, brave" (Latin origin).

Are Dean and Leo boy or girl names?

Dean is primarily a boy name. Leo is primarily a boy name.

More Comparisons