Dewi is a distinctive boys' name in England & Wales, ranking #565 in 2003 with 40 recorded births. The name reached its all-time peak in 1996 with 55 births ranking #390. Since 1996, the popularity has decreased by 27.3%. In 2003, approximately 1 in every 7,488 boys born was named Dewi. RISING Recent data shows the name is currently rising.