Rajan is a distinctive boys' name in England & Wales, ranking #2664 in 2025 with 8 recorded births. The name reached its all-time peak in 1999 with 64 births ranking #359. Since 1996, the popularity has decreased by 81.4%. In 2025, approximately 1 in every 33,992 boys born was named Rajan. FALLING Recent data shows the name is currently falling.