Dyllan is a distinctive boys' name in United States, ranking #2308 in 2016 with 57 recorded births. The name reached its all-time peak in 1999 with 181 births ranking #835. Since 1996, the popularity has decreased by 55.5%. In 2016, approximately 1 in every 33,284 boys born was named Dyllan. FALLING Recent data shows the name is currently falling.