Deagan is a distinctive boys' name in United States, ranking #7171 in 2002 with 9 recorded births. This places Deagan in the bottom 43% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2009 with 86 births ranking #1764. In 2002, approximately 1 in every 215,719 boys born was named Deagan. FALLING Recent data shows the name is currently falling.