Deaglan is a distinctive boys' name in United States, ranking #2782 in 2012 with 43 recorded births. This places Deaglan in the top 20% 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 2012, approximately 1 in every 44,108 boys born was named Deaglan. FALLING Recent data shows the name is currently falling.