Jonni is a distinctive girls' name in United States, ranking #10805 in 2012 with 10 recorded births. This places Jonni in the bottom 45% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1999 with 20 births ranking #5319. Since 1996, the popularity has decreased by 37.5%. In 2012, approximately 1 in every 176,074 girls born was named Jonni. RISING Recent data shows the name is currently rising.