Janessa is a distinctive girls' name in United States, ranking #706 in 1997 with 304 recorded births. This places Janessa in the top 4% of ranked US girls' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 2009 with 556 births ranking #545. In 1997, approximately 1 in every 5,726 girls born was named Janessa. FALLING Recent data shows the name is currently falling.