Janessa is a distinctive girls' name in United States, ranking #630 in 2011 with 451 recorded births. The name reached its all-time peak in 2009 with 556 births ranking #545. Since 1996, the popularity has increased by 46.9%. In 2011, approximately 1 in every 3,900 girls born was named Janessa. FALLING Recent data shows the name is currently falling.