Alannah is a distinctive girls' name in United States, ranking #1674 in 2025 with 123 recorded births. This places Alannah in the top 10% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2015 with 370 births ranking #762. In 2025, approximately 1 in every 13,067 girls born was named Alannah. FALLING Recent data shows the name is currently falling.