Alannah is a distinctive girls' name in United States, ranking #947 in 2014 with 284 recorded births. The name reached its all-time peak in 2015 with 370 births ranking #762. Since 1996, the popularity has increased by 151.3%. In 2014, approximately 1 in every 6,289 girls born was named Alannah. FALLING Recent data shows the name is currently falling.