Alannah is a moderately popular girls' name in England & Wales, ranking #418 in 1998 with 73 recorded births. The name reached its all-time peak in 2017 with 103 births ranking #427. Since 1996, the popularity has decreased by 14.1%. In 1998, approximately 1 in every 3,961 girls born was named Alannah. RISING Recent data shows the name is currently rising.