Rajan is a moderately popular boys' name in England & Wales, ranking #359 in 1999 with 64 recorded births. This places Rajan in the top 9% of ranked UK boys' names for the year. Its actual usage is classified as Moderately Popular. The name reached its all-time peak in 1999 with 64 births ranking #359. Since 1996, the popularity has increased by 48.8%. In 1999, approximately 1 in every 4,738 boys born was named Rajan. FALLING Recent data shows the name is currently falling.