Alannah is a distinctive girls' name in United States, ranking #969 in 2010 with 263 recorded births. The name reached its all-time peak in 2015 with 370 births ranking #762. Since 1996, the popularity has increased by 132.7%. In 2010, approximately 1 in every 6,758 girls born was named Alannah. FALLING Recent data shows the name is currently falling.