Alanah is a distinctive girls' name in England & Wales, ranking #1438 in 2011 with 21 recorded births. The name reached its all-time peak in 2005 with 40 births ranking #736. Since 1996, the popularity has decreased by 12.5%. In 2011, approximately 1 in every 15,301 girls born was named Alanah. FALLING Recent data shows the name is currently falling.