Janessa is a distinctive girls' name in United States, ranking #706 in 2001 with 352 recorded births. The name reached its all-time peak in 2009 with 556 births ranking #545. Since 1996, the popularity has increased by 14.7%. In 2001, approximately 1 in every 5,115 girls born was named Janessa. FALLING Recent data shows the name is currently falling.