Jannessa is a distinctive girls' name in United States, ranking #7575 in 2004 with 15 recorded births. The name reached its all-time peak in 2009 with 18 births ranking #7176. Since 1996, the popularity has increased by 66.7%. In 2004, approximately 1 in every 122,408 girls born was named Jannessa. FALLING Recent data shows the name is currently falling.