Alannah is a distinctive girls' name in United States, ranking #762 in 2015 with 370 recorded births. This places Alannah in the top 4% of ranked US girls' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 2015 with 370 births ranking #762. Since 1996, the popularity has increased by 227.4%. In 2015, approximately 1 in every 4,823 girls born was named Alannah. FALLING Recent data shows the name is currently falling.