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Lucien vs Rex

Baby Name Comparison — 2026

Popularity Comparison

Lucien Rank #914
Rex Rank #793

Rex is more popular, ranked #793 vs #914 for Lucien.

Frequently Asked Questions

Is Lucien or Rex more popular?

Rex is more popular, ranked #793 compared to Lucien at #914 in the United States.

What do Lucien and Rex mean?

Lucien means "light, luminous" (Latin origin). Rex means "king" (Latin origin).

Are Lucien and Rex boy or girl names?

Lucien is primarily a boy name. Rex is primarily a boy name.

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