Dwain is a distinctive boys' name in United States, ranking #3742 in 1998 with 19 recorded births. The name reached its all-time peak in 1997 with 20 births ranking #3489. Since 1996, the popularity has increased by 11.8%. In 1998, approximately 1 in every 100,596 boys born was named Dwain. FALLING Recent data shows the name is currently falling.