Kieran vs Gregory

Baby Name Comparison — 2026

Kieran

Boy #441 Most Popular 2 Syllables

"little dark one"

Origin: Irish Gaelic (ciar + -án)

Irish Scottish English

✓ All Clear

Boy #538 Most Popular 3 Syllables

"watchful, vigilant, alert"

Origin: Greek

English Greek Roman Catholic Eastern Orthodox

✓ All Clear

Kieran Rank #441

Gregory Rank #538

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

Is Kieran or Gregory more popular?

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

What do Kieran and Gregory mean?

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

Are Kieran and Gregory boy or girl names?

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