Joannah is a distinctive girls' name in United States, ranking #15488 in 1999 with 5 recorded births. The name reached its all-time peak in 2018 with 15 births ranking #7547. Since 1996, the popularity has decreased by 28.6%. In 1999, approximately 1 in every 354,756 girls born was named Joannah. FALLING Recent data shows the name is currently falling.