Cilla is a distinctive girls' name in United States, ranking #17913 in 2009 with 5 recorded births. This places Cilla in the bottom 11% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2009 with 5 births ranking #17913. In 2009, approximately 1 in every 367,374 girls born was named Cilla. STABLE Recent data shows the name is currently stable.