Eithne is a distinctive girls' name in United States, ranking #18447 in 2007 with 5 recorded births. This places Eithne in the bottom 10% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2025 with 6 births ranking #13673. In 2007, approximately 1 in every 384,490 girls born was named Eithne. STABLE Recent data shows the name is currently stable.