Rajan is a distinctive boys' name in England & Wales, ranking #546 in 2002 with 38 recorded births. The name reached its all-time peak in 1999 with 64 births ranking #359. Since 1996, the popularity has decreased by 11.6%. In 2002, approximately 1 in every 7,587 boys born was named Rajan. FALLING Recent data shows the name is currently falling.