Delwyn is a distinctive boys' name in United States, ranking #8973 in 2014 with 8 recorded births. The name reached its all-time peak in 2011 with 9 births ranking #8231. Since 1996, the popularity has increased by 33.3%. In 2014, approximately 1 in every 240,055 boys born was named Delwyn. STABLE Recent data shows the name is currently stable.