Gretta is a distinctive girls' name in United States, ranking #4191 in 2006 with 35 recorded births. The name reached its all-time peak in 2010 with 70 births ranking #2594. Since 1996, the popularity has increased by 40.0%. In 2006, approximately 1 in every 54,316 girls born was named Gretta. FALLING Recent data shows the name is currently falling.