Janessa is a distinctive girls' name in United States, ranking #1141 in 2020 with 208 recorded births. The name reached its all-time peak in 2009 with 556 births ranking #545. Since 1996, the popularity has decreased by 32.2%. In 2020, approximately 1 in every 7,767 girls born was named Janessa. FALLING Recent data shows the name is currently falling.