Casey is a distinctive girls' name in United States, ranking #1065 in 2025 with 228 recorded births. The name reached its all-time peak in 1996 with 2,551 births ranking #121. Since 1996, the popularity has decreased by 91.1%. In 2025, approximately 1 in every 7,049 girls born was named Casey. STABLE Recent data shows the name is currently stable.
Casey is an Irish surname-derived name usually linked with watchfulness or vigilance. It has an easy, friendly sound and has long worked as a flexible unisex choice.
The name entered modern first-name use through surname tradition and later became common for both boys and girls. Its relaxed style has helped it remain familiar without feeling dated.