Alannah is a distinctive girls' name in United States, ranking #1181 in 2001 with 173 recorded births. The name reached its all-time peak in 2015 with 370 births ranking #762. Since 1996, the popularity has increased by 53.1%. In 2001, approximately 1 in every 10,408 girls born was named Alannah. FALLING Recent data shows the name is currently falling.