Dyllan is a distinctive boys' name in United States, ranking #7321 in 2025 with 11 recorded births. This places Dyllan in the bottom 47% 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. Since 1996, the popularity has decreased by 91.4%. In 2025, approximately 1 in every 155,280 boys born was named Dyllan. FALLING Recent data shows the name is currently falling.