Dwain is a distinctive boys' name in United States, ranking #5643 in 2003 with 13 recorded births. The name reached its all-time peak in 1997 with 20 births ranking #3489. Since 1996, the popularity has decreased by 23.5%. In 2003, approximately 1 in every 151,944 boys born was named Dwain. FALLING Recent data shows the name is currently falling.