Alannah is a moderately popular girls' name in England & Wales, ranking #436 in 1999 with 69 recorded births. The name reached its all-time peak in 2017 with 103 births ranking #427. Since 1996, the popularity has decreased by 18.8%. In 1999, approximately 1 in every 4,083 girls born was named Alannah. RISING Recent data shows the name is currently rising.