Dyllan is a distinctive girls' name in United States, ranking #12251 in 2025 with 7 recorded births. The name reached its all-time peak in 2010 with 37 births ranking #4047. Since 1996, the popularity has decreased by 12.5%. In 2025, approximately 1 in every 229,610 girls born was named Dyllan. RISING Recent data shows the name is currently rising.