Calab is a distinctive boys' name in United States, ranking #3935 in 2000 with 20 recorded births. This places Calab in the top 32% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2007 with 26 births ranking #3915. Since 1996, the popularity has increased by 17.6%. In 2000, approximately 1 in every 98,197 boys born was named Calab. FALLING Recent data shows the name is currently falling.