Johnna is a distinctive girls' name in United States, ranking #3109 in 2009 with 55 recorded births. The name reached its all-time peak in 1997 with 157 births ranking #1172. Since 1996, the popularity has decreased by 62.8%. In 2009, approximately 1 in every 33,398 girls born was named Johnna. FALLING Recent data shows the name is currently falling.