Dwain is a distinctive boys' name in United States, ranking #6909 in 2009 with 12 recorded births. The name reached its all-time peak in 1997 with 20 births ranking #3489. Since 1996, the popularity has decreased by 29.4%. In 2009, approximately 1 in every 165,275 boys born was named Dwain. FALLING Recent data shows the name is currently falling.