Janessa is a distinctive girls' name in United States, ranking #574 in 2008 with 536 recorded births. The name reached its all-time peak in 2009 with 556 births ranking #545. Since 1996, the popularity has increased by 74.6%. In 2008, approximately 1 in every 3,527 girls born was named Janessa. FALLING Recent data shows the name is currently falling.