Jannessa is a distinctive girls' name in United States, ranking #13673 in 2014 with 7 recorded births. The name reached its all-time peak in 2009 with 18 births ranking #7176. Since 1996, the popularity has decreased by 22.2%. In 2014, approximately 1 in every 255,134 girls born was named Jannessa. FALLING Recent data shows the name is currently falling.