Janessa is a distinctive girls' name in United States, ranking #557 in 2007 with 547 recorded births. The name reached its all-time peak in 2009 with 556 births ranking #545. Since 1996, the popularity has increased by 78.2%. In 2007, approximately 1 in every 3,515 girls born was named Janessa. FALLING Recent data shows the name is currently falling.