Johnna is a distinctive girls' name in United States, ranking #1550 in 2001 with 120 recorded births. The name reached its all-time peak in 1997 with 157 births ranking #1172. Since 1996, the popularity has decreased by 18.9%. In 2001, approximately 1 in every 15,005 girls born was named Johnna. FALLING Recent data shows the name is currently falling.