Alannah is a distinctive girls' name in United States, ranking #1168 in 2005 with 197 recorded births. The name reached its all-time peak in 2015 with 370 births ranking #762. Since 1996, the popularity has increased by 74.3%. In 2005, approximately 1 in every 9,379 girls born was named Alannah. FALLING Recent data shows the name is currently falling.