Jahnasia is a distinctive girls' name in United States, ranking #15742 in 2010 with 6 recorded births. The name reached its all-time peak in 2004 with 12 births ranking #8914. Since 1996, the popularity has increased by 20.0%. In 2010, approximately 1 in every 296,221 girls born was named Jahnasia. FALLING Recent data shows the name is currently falling.