Dyllan is a distinctive boys' name in United States, ranking #4142 in 2019 with 25 recorded births. The name reached its all-time peak in 1999 with 181 births ranking #835. Since 1996, the popularity has decreased by 80.5%. In 2019, approximately 1 in every 71,734 boys born was named Dyllan. FALLING Recent data shows the name is currently falling.