Jannessa is a distinctive girls' name in United States, ranking #7590 in 2002 with 14 recorded births. The name reached its all-time peak in 2009 with 18 births ranking #7176. Since 1996, the popularity has increased by 55.6%. In 2002, approximately 1 in every 128,344 girls born was named Jannessa. FALLING Recent data shows the name is currently falling.