Carwyn is a distinctive boys' name in England & Wales, ranking #814 in 2001 with 21 recorded births. The name reached its all-time peak in 1996 with 40 births ranking #464. Since 1996, the popularity has decreased by 47.5%. In 2001, approximately 1 in every 13,706 boys born was named Carwyn. FALLING Recent data shows the name is currently falling.