Dian is a distinctive boys' name in United States, ranking #12746 in 2012 with 5 recorded births. This places Dian in the bottom 11% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2020 with 20 births ranking #4741. In 2012, approximately 1 in every 379,325 boys born was named Dian. STABLE Recent data shows the name is currently stable.