Alannah is a distinctive girls' name in United States, ranking #1081 in 2020 with 228 recorded births. The name reached its all-time peak in 2015 with 370 births ranking #762. Since 1996, the popularity has increased by 101.8%. In 2020, approximately 1 in every 7,086 girls born was named Alannah. FALLING Recent data shows the name is currently falling.