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Declan vs Jack

Baby Name Comparison — 2026

Popularity Comparison

Declan Rank #131
Jack Rank #15

Jack is more popular, ranked #15 vs #131 for Declan.

Frequently Asked Questions

Is Declan or Jack more popular?

Jack is more popular, ranked #15 compared to Declan at #131 in the United States.

What do Declan and Jack mean?

Declan means "man of prayer" (Irish Gaelic origin). Jack means "supplanter" (Hebrew origin).

Are Declan and Jack boy or girl names?

Declan is primarily a boy name. Jack is primarily a boy name.

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← Full profile: Declan ← Full profile: Jack Browse all baby names