Jannessa is a distinctive girls' name in United States, ranking #10439 in 2015 with 10 recorded births. The name reached its all-time peak in 2009 with 18 births ranking #7176. Since 1996, the popularity has increased by 11.1%. In 2015, approximately 1 in every 178,465 girls born was named Jannessa. FALLING Recent data shows the name is currently falling.