Lannah is a distinctive girls' name in United States, ranking #11734 in 2011 with 9 recorded births. This places Lannah in the bottom 40% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2005 with 16 births ranking #7343. In 2011, approximately 1 in every 195,423 girls born was named Lannah. STABLE Recent data shows the name is currently stable.