Alder vs Sidney

Baby Name Comparison — 2026

Alder

Boy #1,424 Most Popular 2 Syllables

"alder tree"

Origin: Old English alor

English German Scandinavian American

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Boy #1,374 Most Popular 2 Syllables

"from Saint Denis"

Origin: Anglo-Norman French

English American Australian

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Alder Rank #1,424

Sidney Rank #1,374

Sidney is more popular, ranked #1374 vs #1424 for Alder.

Is Alder or Sidney more popular?

Sidney is more popular, ranked #1374 compared to Alder at #1424 in the United States.

What do Alder and Sidney mean?

Alder means "alder tree" (Old English alor origin). Sidney means "from Saint Denis" (Anglo-Norman French origin).

Are Alder and Sidney boy or girl names?

Alder is primarily a boy name. Sidney is primarily a boy name.