Allanah is a distinctive girls' name in England & Wales, ranking #1060 in 1999 with 19 recorded births. The name reached its all-time peak in 1998 with 20 births ranking #1036. Since 1996, the popularity has increased by 11.8%. In 1999, approximately 1 in every 14,826 girls born was named Allanah. STABLE Recent data shows the name is currently stable.