Dyllan is a distinctive boys' name in United States, ranking #835 in 1999 with 181 recorded births. The name reached its all-time peak in 1999 with 181 births ranking #835. Since 1996, the popularity has increased by 41.4%. In 1999, approximately 1 in every 10,608 boys born was named Dyllan. FALLING Recent data shows the name is currently falling.