Kellis is a distinctive girls' name in United States, ranking #14449 in 2001 with 6 recorded births. This places Kellis in the bottom 20% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2007 with 16 births ranking #7909. In 2001, approximately 1 in every 300,093 girls born was named Kellis. FALLING Recent data shows the name is currently falling.