Casey vs Sadie

Baby Name Comparison — 2026

Casey

Girl #1,055 Most Popular 2 Syllables

"vigilant, watchful"

Origin: Irish Gaelic

Irish American Australian

✓ All Clear

Girl #57 Most Popular 2 Syllables

"diminutive of Sarah"

Origin: Hebrew

English American

✓ All Clear

Casey Rank #1,055

Sadie Rank #57

Sadie is more popular, ranked #57 vs #1055 for Casey.

Is Casey or Sadie more popular?

Sadie is more popular, ranked #57 compared to Casey at #1055 in the United States.

What do Casey and Sadie mean?

Casey means "vigilant, watchful" (Irish Gaelic origin). Sadie means "diminutive of Sarah" (Hebrew origin).

Are Casey and Sadie boy or girl names?

Casey is primarily a girl name. Sadie is primarily a girl name.