Casyn vs Greg

Baby Name Comparison — 2026

Casyn

Boy #4,583 Most Popular 2 Syllables

"vigilant, watchful"

Origin: Irish Gaelic

American Irish English

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Boy #4,526 Most Popular 1 Syllable

"watchful, alert"

Origin: Greek

English American European

✓ All Clear

Casyn Rank #4,583

Greg Rank #4,526

Greg is more popular, ranked #4526 vs #4583 for Casyn.

Is Casyn or Greg more popular?

Greg is more popular, ranked #4526 compared to Casyn at #4583 in the United States.

What do Casyn and Greg mean?

Casyn means "vigilant, watchful" (Irish Gaelic origin). Greg means "watchful, alert" (Greek origin).

Are Casyn and Greg boy or girl names?

Casyn is primarily a boy name. Greg is primarily a boy name.