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Cynthia vs Sydney

Baby Name Comparison — 2026

Popularity Comparison

Cynthia Rank #827
Sydney Rank #288

Sydney is more popular, ranked #288 vs #827 for Cynthia.

Frequently Asked Questions

Is Cynthia or Sydney more popular?

Sydney is more popular, ranked #288 compared to Cynthia at #827 in the United States.

What do Cynthia and Sydney mean?

Cynthia means "woman from Mount Cynthus" (Greek origin). Sydney means "wide island; broad river-island" (Old English origin).

Are Cynthia and Sydney boy or girl names?

Cynthia is primarily a girl name. Sydney is primarily a girl name.

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← Full profile: Cynthia ← Full profile: Sydney Browse all baby names