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Declan vs William

Baby Name Comparison — 2026

Popularity Comparison

Declan Rank #131
William Rank #10

William is more popular, ranked #10 vs #131 for Declan.

Frequently Asked Questions

Is Declan or William more popular?

William is more popular, ranked #10 compared to Declan at #131 in the United States.

What do Declan and William mean?

Declan means "man of prayer" (Irish Gaelic origin). William means "resolute protector, strong-willed guardian" (Germanic origin).

Are Declan and William boy or girl names?

Declan is primarily a boy name. William is primarily a boy name.

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