Deaglan is a distinctive boys' name in United States, ranking #3648 in 2010 with 29 recorded births. This places Deaglan in the top 26% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2015 with 50 births ranking #2494. In 2010, approximately 1 in every 66,152 boys born was named Deaglan. FALLING Recent data shows the name is currently falling.