Isabellah is a distinctive girls' name in United States, ranking #5905 in 2015 with 22 recorded births. This places Isabellah in the top 31% 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 2015, approximately 1 in every 81,121 girls born was named Isabellah. FALLING Recent data shows the name is currently falling.