Jahnasia is a distinctive girls' name in United States, ranking #9721 in 2005 with 11 recorded births. The name reached its all-time peak in 2004 with 12 births ranking #8914. Since 1996, the popularity has increased by 120.0%. In 2005, approximately 1 in every 167,973 girls born was named Jahnasia. FALLING Recent data shows the name is currently falling.