Dyllan is a distinctive boys' name in United States, ranking #1119 in 2005 with 147 recorded births. The name reached its all-time peak in 1999 with 181 births ranking #835. Since 1996, the popularity has increased by 14.8%. In 2005, approximately 1 in every 13,586 boys born was named Dyllan. FALLING Recent data shows the name is currently falling.