Johnna is a distinctive girls' name in United States, ranking #2148 in 2005 with 86 recorded births. The name reached its all-time peak in 1997 with 157 births ranking #1172. Since 1996, the popularity has decreased by 41.9%. In 2005, approximately 1 in every 21,485 girls born was named Johnna. FALLING Recent data shows the name is currently falling.