Johnna is a distinctive girls' name in United States, ranking #2102 in 2006 with 93 recorded births. The name reached its all-time peak in 1997 with 157 births ranking #1172. Since 1996, the popularity has decreased by 37.2%. In 2006, approximately 1 in every 20,442 girls born was named Johnna. FALLING Recent data shows the name is currently falling.