Jannessa is a distinctive girls' name in United States, ranking #11319 in 1997 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 1997, approximately 1 in every 248,666 girls born was named Jannessa. FALLING Recent data shows the name is currently falling.