Kirby is a distinctive boys' name in United States, ranking #2881 in 2019 with 43 recorded births. The name reached its all-time peak in 1996 with 131 births ranking #972. Since 1996, the popularity has decreased by 67.2%. In 2019, approximately 1 in every 41,706 boys born was named Kirby. FALLING Recent data shows the name is currently falling.