Jannessa is a distinctive girls' name in United States, ranking #9396 in 2011 with 12 recorded births. The name reached its all-time peak in 2009 with 18 births ranking #7176. Since 1996, the popularity has increased by 33.3%. In 2011, approximately 1 in every 146,567 girls born was named Jannessa. FALLING Recent data shows the name is currently falling.