Dillan is a distinctive boys' name in England & Wales, ranking #695 in 2012 with 48 recorded births. The name reached its all-time peak in 2011 with 53 births ranking #631. Since 1996, the popularity has increased by 65.5%. In 2012, approximately 1 in every 7,259 boys born was named Dillan. RISING Recent data shows the name is currently rising.