Dian is a distinctive boys' name in United States, ranking #8953 in 2015 with 8 recorded births. This places Dian in the bottom 36% 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 2015, approximately 1 in every 239,532 boys born was named Dian. STABLE Recent data shows the name is currently stable.