Quillan is a distinctive boys' name in United States, ranking #13419 in 2025 with 5 recorded births. The name reached its all-time peak in 2019 with 19 births ranking #5109. Since 1996, the popularity has decreased by 50.0%. In 2025, approximately 1 in every 341,615 boys born was named Quillan. FALLING Recent data shows the name is currently falling.