Delmer is a distinctive boys' name in United States, ranking #12484 in 2025 with 5 recorded births. The name reached its all-time peak in 2012 with 13 births ranking #6404. Since 1996, the popularity has decreased by 28.6%. In 2025, approximately 1 in every 341,615 boys born was named Delmer. FALLING Recent data shows the name is currently falling.