Dewi is a distinctive boys' name in England & Wales, ranking #1050 in 2016 with 27 recorded births. The name reached its all-time peak in 1996 with 55 births ranking #390. Since 1996, the popularity has decreased by 50.9%. In 2016, approximately 1 in every 12,294 boys born was named Dewi. RISING Recent data shows the name is currently rising.