Qusai is a distinctive boys' name in United States, ranking #7934 in 2011 with 10 recorded births. This places Qusai in the bottom 45% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2015 with 26 births ranking #4049. In 2011, approximately 1 in every 189,899 boys born was named Qusai. FALLING Recent data shows the name is currently falling.