Janessa is a distinctive girls' name in United States, ranking #761 in 2014 with 368 recorded births. The name reached its all-time peak in 2009 with 556 births ranking #545. Since 1996, the popularity has increased by 19.9%. In 2014, approximately 1 in every 4,853 girls born was named Janessa. FALLING Recent data shows the name is currently falling.