Dallan is a distinctive boys' name in United States, ranking #6755 in 2015 with 12 recorded births. The name reached its all-time peak in 2008 with 34 births ranking #3296. Since 1996, the popularity has decreased by 45.5%. In 2015, approximately 1 in every 159,688 boys born was named Dallan. FALLING Recent data shows the name is currently falling.