Dillin is a distinctive boys' name in United States, ranking #3475 in 2002 with 25 recorded births. This places Dillin in the top 28% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1998 with 28 births ranking #2877. In 2002, approximately 1 in every 77,659 boys born was named Dillin. FALLING Recent data shows the name is currently falling.