Janessa is a distinctive girls' name in United States, ranking #583 in 2005 with 488 recorded births. The name reached its all-time peak in 2009 with 556 births ranking #545. Since 1996, the popularity has increased by 59.0%. In 2005, approximately 1 in every 3,786 girls born was named Janessa. FALLING Recent data shows the name is currently falling.