Dillon vs Brennan

Baby Name Comparison — 2026

Popularity Comparison

Dillon Rank #870
Brennan Rank #1,058

Dillon is more popular, ranked #870 vs #1058 for Brennan.

Frequently Asked Questions

Is Dillon or Brennan more popular?

Dillon is more popular, ranked #870 compared to Brennan at #1058 in the United States.

What do Dillon and Brennan mean?

Dillon means "great tide, son of the sea" (Welsh origin). Brennan means "descendant of Braonán, tearful one" (Irish Gaelic origin).

Are Dillon and Brennan boy or girl names?

Dillon is primarily a boy name. Brennan is primarily a boy name.

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