Dallan is a distinctive boys' name in United States, ranking #3811 in 2002 with 22 recorded births. This places Dallan in the top 31% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2008 with 34 births ranking #3296. In 2002, approximately 1 in every 88,249 boys born was named Dallan. FALLING Recent data shows the name is currently falling.