Casey vs Cathy

Baby Name Comparison — 2026

Casey

Girl #1,055 Most Popular 2 Syllables

"vigilant, watchful"

Origin: Irish Gaelic

Irish American Australian

✓ All Clear

Girl #6,151 Most Popular 2 Syllables

"pure"

Origin: Greek katharos

English American Irish

✓ All Clear

Casey Rank #1,055

Cathy Rank #6,151

Casey is more popular, ranked #1055 vs #6151 for Cathy.

Is Casey or Cathy more popular?

Casey is more popular, ranked #1055 compared to Cathy at #6151 in the United States.

What do Casey and Cathy mean?

Casey means "vigilant, watchful" (Irish Gaelic origin). Cathy means "pure" (Greek katharos origin).

Are Casey and Cathy boy or girl names?

Casey is primarily a girl name. Cathy is primarily a girl name.