Dillin is a distinctive boys' name in United States, ranking #4038 in 2007 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 2007, approximately 1 in every 83,009 boys born was named Dillin. FALLING Recent data shows the name is currently falling.