Erma is a distinctive girls' name in United States, ranking #8784 in 2011 with 13 recorded births. The name reached its all-time peak in 2004 with 26 births ranking #4980. Since 1996, the popularity has decreased by 40.9%. In 2011, approximately 1 in every 135,293 girls born was named Erma. STABLE Recent data shows the name is currently stable.