Dyllan is a distinctive boys' name in United States, ranking #1338 in 2008 with 129 recorded births. This places Dyllan in the top 9% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1999 with 181 births ranking #835. In 2008, approximately 1 in every 15,814 boys born was named Dyllan. FALLING Recent data shows the name is currently falling.