Johnna is a distinctive girls' name in United States, ranking #1613 in 2002 with 115 recorded births. The name reached its all-time peak in 1997 with 157 births ranking #1172. Since 1996, the popularity has decreased by 22.3%. In 2002, approximately 1 in every 15,625 girls born was named Johnna. FALLING Recent data shows the name is currently falling.