Jannessa is a distinctive girls' name in United States, ranking #7431 in 1999 with 13 recorded births. The name reached its all-time peak in 2009 with 18 births ranking #7176. Since 1996, the popularity has increased by 44.4%. In 1999, approximately 1 in every 136,445 girls born was named Jannessa. FALLING Recent data shows the name is currently falling.