Gregory vs Kieran

Baby Name Comparison — 2026

Gregory

Boy #538 Most Popular 3 Syllables

"watchful, vigilant, alert"

Origin: Greek

English Greek Roman Catholic Eastern Orthodox

✓ All Clear

Boy #441 Most Popular 2 Syllables

"little dark one"

Origin: Irish Gaelic (ciar + -án)

Irish Scottish English

✓ All Clear

Gregory Rank #538

Kieran Rank #441

Kieran is more popular, ranked #441 vs #538 for Gregory.

Is Gregory or Kieran more popular?

Kieran is more popular, ranked #441 compared to Gregory at #538 in the United States.

What do Gregory and Kieran mean?

Gregory means "watchful, vigilant, alert" (Greek origin). Kieran means "little dark one" (Irish Gaelic (ciar + -án) origin).

Are Gregory and Kieran boy or girl names?

Gregory is primarily a boy name. Kieran is primarily a boy name.