Kirby is a distinctive girls' name in United States, ranking #4779 in 2012 with 30 recorded births. The name reached its all-time peak in 1996 with 115 births ranking #1433. Since 1996, the popularity has decreased by 73.9%. In 2012, approximately 1 in every 58,691 girls born was named Kirby. RISING Recent data shows the name is currently rising.