Kayce is a moderately popular boys' name in United States, ranking #419 in 2024 with 756 recorded births. The name reached its all-time peak in 2025 with 843 births ranking #375. In 2024, approximately 1 in every 2,269 boys born was named Kayce. RISING Recent data shows the name is currently rising.
Kayce is a modern spelling that can follow either Casey or Case, depending on how it is said. In practice that gives it a link either to Casey’s traditional Irish route or to the shorter modern Case line.
Behind the Name notes that the name was popularised recently by the Yellowstone character Kayce Dutton. Because pronunciation affects which underlying name it belongs to, it is better published with a little caution.