Jannessa is a distinctive girls' name in United States, ranking #13090 in 2008 with 8 recorded births. The name reached its all-time peak in 2009 with 18 births ranking #7176. Since 1996, the popularity has decreased by 11.1%. In 2008, approximately 1 in every 236,340 girls born was named Jannessa. FALLING Recent data shows the name is currently falling.