Dwain is a distinctive boys' name in United States, ranking #7339 in 2008 with 11 recorded births. The name reached its all-time peak in 1997 with 20 births ranking #3489. Since 1996, the popularity has decreased by 35.3%. In 2008, approximately 1 in every 185,450 boys born was named Dwain. FALLING Recent data shows the name is currently falling.