Dallyn is a distinctive boys' name in United States, ranking #8924 in 2015 with 8 recorded births. The name reached its all-time peak in 2003 with 17 births ranking #4646. Since 1996, the popularity has increased by 60.0%. In 2015, approximately 1 in every 239,532 boys born was named Dallyn. RISING Recent data shows the name is currently rising.