Dyllan is a distinctive boys' name in United States, ranking #1457 in 2010 with 113 recorded births. The name reached its all-time peak in 1999 with 181 births ranking #835. Since 1996, the popularity has decreased by 11.7%. In 2010, approximately 1 in every 16,977 boys born was named Dyllan. FALLING Recent data shows the name is currently falling.