Janessa is a distinctive girls' name in United States, ranking #716 in 2015 with 397 recorded births. The name reached its all-time peak in 2009 with 556 births ranking #545. Since 1996, the popularity has increased by 29.3%. In 2015, approximately 1 in every 4,495 girls born was named Janessa. FALLING Recent data shows the name is currently falling.