Quillan is a distinctive boys' name in United States, ranking #14112 in 2008 with 5 recorded births. This places Quillan in the bottom 3% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2019 with 19 births ranking #5109. Since 1996, the popularity has decreased by 50.0%. In 2008, approximately 1 in every 407,989 boys born was named Quillan. FALLING Recent data shows the name is currently falling.