Quillan is a distinctive boys' name in United States, ranking #10623 in 2007 with 7 recorded births. This places Quillan in the bottom 26% 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 30.0%. In 2007, approximately 1 in every 296,462 boys born was named Quillan. FALLING Recent data shows the name is currently falling.