Rees is a distinctive boys' name in England & Wales, ranking #507 in 1999 with 39 recorded births. The name reached its all-time peak in 2000 with 52 births ranking #415. Since 1996, the popularity has increased by 85.7%. In 1999, approximately 1 in every 7,775 boys born was named Rees. FALLING Recent data shows the name is currently falling.