Delmer is a distinctive boys' name in United States, ranking #8339 in 2007 with 9 recorded births. The name reached its all-time peak in 2012 with 13 births ranking #6404. Since 1996, the popularity has increased by 28.6%. In 2007, approximately 1 in every 230,582 boys born was named Delmer. FALLING Recent data shows the name is currently falling.