Kirby is a distinctive girls' name in United States, ranking #5698 in 2005 with 22 recorded births. The name reached its all-time peak in 1996 with 115 births ranking #1433. Since 1996, the popularity has decreased by 80.9%. In 2005, approximately 1 in every 83,986 girls born was named Kirby. RISING Recent data shows the name is currently rising.