Rikku is a distinctive girls' name in United States, ranking #19900 in 2007 with 5 recorded births. This places Rikku in the bottom 3% 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 5 births ranking #19900. In 2007, approximately 1 in every 384,490 girls born was named Rikku. STABLE Recent data shows the name is currently stable.