Kirby is a distinctive boys' name in United States, ranking #3278 in 2025 with 36 recorded births. The name reached its all-time peak in 1996 with 131 births ranking #972. Since 1996, the popularity has decreased by 72.5%. In 2025, approximately 1 in every 47,447 boys born was named Kirby. FALLING Recent data shows the name is currently falling.