Kiegan is a distinctive boys' name in United States, ranking #7915 in 2007 with 10 recorded births. The name reached its all-time peak in 2008 with 17 births ranking #5382. Since 1996, the popularity has increased by 66.7%. In 2007, approximately 1 in every 207,524 boys born was named Kiegan. RISING Recent data shows the name is currently rising.