Jannessa is a distinctive girls' name in United States, ranking #7176 in 2009 with 18 recorded births. The name reached its all-time peak in 2009 with 18 births ranking #7176. Since 1996, the popularity has increased by 100.0%. In 2009, approximately 1 in every 102,048 girls born was named Jannessa. FALLING Recent data shows the name is currently falling.