Gretta is a distinctive girls' name in United States, ranking #3786 in 2022 with 40 recorded births. The name reached its all-time peak in 2010 with 70 births ranking #2594. Since 1996, the popularity has increased by 60.0%. In 2022, approximately 1 in every 40,969 girls born was named Gretta. FALLING Recent data shows the name is currently falling.