Greg vs Kallahan

Baby Name Comparison — 2026

Greg

Boy #4,526 Most Popular 1 Syllable

"watchful, alert"

Origin: Greek

English American European

✓ All Clear

Boy #4,386 Most Popular 3 Syllables

"warrior"

Origin: Old Irish

Irish Irish-American American

✓ All Clear

Greg Rank #4,526

Kallahan Rank #4,386

Kallahan is more popular, ranked #4386 vs #4526 for Greg.

Is Greg or Kallahan more popular?

Kallahan is more popular, ranked #4386 compared to Greg at #4526 in the United States.

What do Greg and Kallahan mean?

Greg means "watchful, alert" (Greek origin). Kallahan means "warrior" (Old Irish origin).

Are Greg and Kallahan boy or girl names?

Greg is primarily a boy name. Kallahan is primarily a boy name.