Dallyn is a distinctive boys' name in United States, ranking #6647 in 1999 with 9 recorded births. The name reached its all-time peak in 2003 with 17 births ranking #4646. Since 1996, the popularity has increased by 80.0%. In 1999, approximately 1 in every 213,343 boys born was named Dallyn. RISING Recent data shows the name is currently rising.