Jonni is a distinctive girls' name in United States, ranking #9841 in 2002 with 10 recorded births. The name reached its all-time peak in 1999 with 20 births ranking #5319. Since 1996, the popularity has decreased by 37.5%. In 2002, approximately 1 in every 179,682 girls born was named Jonni. RISING Recent data shows the name is currently rising.