Diomar is a distinctive boys' name in United States, ranking #10148 in 2008 with 7 recorded births. This places Diomar in the bottom 31% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2011 with 13 births ranking #6334. In 2008, approximately 1 in every 291,421 boys born was named Diomar. STABLE Recent data shows the name is currently stable.