Rehaan is a distinctive boys' name in United States, ranking #12100 in 2002 with 5 recorded births. This places Rehaan in the bottom 3% 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 30 births ranking #3573. In 2002, approximately 1 in every 388,294 boys born was named Rehaan. FALLING Recent data shows the name is currently falling.