Knox vs Leo

Baby Name Comparison — 2026

Knox

Boy #209 Most Popular 1 Syllable

"round hill"

Origin: Old English/Scottish

American Scottish English

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Boy #24 Most Popular 2 Syllables

"lion-hearted, brave"

Origin: Latin

English Italian German French American Spanish

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Knox Rank #209

Leo Rank #24

Leo is more popular, ranked #24 vs #209 for Knox.

Is Knox or Leo more popular?

Leo is more popular, ranked #24 compared to Knox at #209 in the United States.

What do Knox and Leo mean?

Knox means "round hill" (Old English/Scottish origin). Leo means "lion-hearted, brave" (Latin origin).

Are Knox and Leo boy or girl names?

Knox is primarily a boy name. Leo is primarily a boy name.