Dyllan is a distinctive boys' name in United States, ranking #983 in 2001 with 156 recorded births. The name reached its all-time peak in 1999 with 181 births ranking #835. Since 1996, the popularity has increased by 21.9%. In 2001, approximately 1 in every 12,454 boys born was named Dyllan. FALLING Recent data shows the name is currently falling.