Alannah is a moderately popular girls' name in England & Wales, ranking #427 in 2017 with 103 recorded births. The name reached its all-time peak in 2017 with 103 births ranking #427. Since 1996, the popularity has increased by 21.2%. In 2017, approximately 1 in every 2,904 girls born was named Alannah. RISING Recent data shows the name is currently rising.