Alannah is a distinctive girls' name in United States, ranking #846 in 2012 with 315 recorded births. The name reached its all-time peak in 2015 with 370 births ranking #762. Since 1996, the popularity has increased by 178.8%. In 2012, approximately 1 in every 5,590 girls born was named Alannah. FALLING Recent data shows the name is currently falling.