Janessa is a distinctive girls' name in United States, ranking #590 in 2003 with 465 recorded births. The name reached its all-time peak in 2009 with 556 births ranking #545. Since 1996, the popularity has increased by 51.5%. In 2003, approximately 1 in every 3,929 girls born was named Janessa. FALLING Recent data shows the name is currently falling.