Jahna is a distinctive girls' name in United States, ranking #15734 in 2012 with 6 recorded births. The name reached its all-time peak in 1998 with 16 births ranking #6174. Since 1996, the popularity has decreased by 40.0%. In 2012, approximately 1 in every 293,457 girls born was named Jahna. FALLING Recent data shows the name is currently falling.