Deegan is a distinctive boys' name in United States, ranking #2698 in 2001 with 35 recorded births. This places Deegan in the top 22% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2011 with 259 births ranking #835. In 2001, approximately 1 in every 55,509 boys born was named Deegan. FALLING Recent data shows the name is currently falling.