Erma is a distinctive girls' name in United States, ranking #9575 in 2009 with 12 recorded births. The name reached its all-time peak in 2004 with 26 births ranking #4980. Since 1996, the popularity has decreased by 45.5%. In 2009, approximately 1 in every 153,073 girls born was named Erma. STABLE Recent data shows the name is currently stable.