Isabellah is a distinctive girls' name in United States, ranking #4397 in 2011 with 33 recorded births. This places Isabellah in the top 22% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2011 with 33 births ranking #4397. In 2011, approximately 1 in every 53,297 girls born was named Isabellah. FALLING Recent data shows the name is currently falling.