Carwyn is a distinctive boys' name in England & Wales, ranking #575 in 1999 with 32 recorded births. The name reached its all-time peak in 1996 with 40 births ranking #464. Since 1996, the popularity has decreased by 20.0%. In 1999, approximately 1 in every 9,476 boys born was named Carwyn. FALLING Recent data shows the name is currently falling.