Efstathia is a distinctive girls' name in United States, ranking #18318 in 2008 with 5 recorded births. This places Efstathia in the bottom 11% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2008 with 5 births ranking #18318. In 2008, approximately 1 in every 378,144 girls born was named Efstathia. STABLE Recent data shows the name is currently stable.