Alanah is a distinctive girls' name in England & Wales, ranking #735 in 2002 with 35 recorded births. The name reached its all-time peak in 2005 with 40 births ranking #736. Since 1996, the popularity has increased by 45.8%. In 2002, approximately 1 in every 7,639 girls born was named Alanah. FALLING Recent data shows the name is currently falling.