Alannah is a distinctive girls' name in United States, ranking #918 in 2011 with 283 recorded births. The name reached its all-time peak in 2015 with 370 births ranking #762. Since 1996, the popularity has increased by 150.4%. In 2011, approximately 1 in every 6,215 girls born was named Alannah. FALLING Recent data shows the name is currently falling.