Rihannah is a distinctive girls' name in United States, ranking #12448 in 2007 with 9 recorded births. This places Rihannah in the bottom 40% 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 9 births ranking #12448. In 2007, approximately 1 in every 213,605 girls born was named Rihannah. FALLING Recent data shows the name is currently falling.