Jack vs Liam

Baby Name Comparison — 2026

Jack

Boy #15 Most Popular 1 Syllable

"supplanter"

Origin: Hebrew

English Irish American Australian

✓ All Clear

Boy #1 Most Popular 2 Syllables

"strong-willed warrior"

Origin: Irish

Irish English American

✓ All Clear

Jack Rank #15

Liam Rank #1

Liam is more popular, ranked #1 vs #15 for Jack.

Is Jack or Liam more popular?

Liam is more popular, ranked #1 compared to Jack at #15 in the United States.

What do Jack and Liam mean?

Jack means "supplanter" (Hebrew origin). Liam means "strong-willed warrior" (Irish origin).

Are Jack and Liam boy or girl names?

Jack is primarily a boy name. Liam is primarily a boy name.