Alannah is a distinctive girls' name in United States, ranking #992 in 2009 with 267 recorded births. The name reached its all-time peak in 2015 with 370 births ranking #762. Since 1996, the popularity has increased by 136.3%. In 2009, approximately 1 in every 6,880 girls born was named Alannah. FALLING Recent data shows the name is currently falling.