Deagan is a distinctive boys' name in United States, ranking #3461 in 2003 with 26 recorded births. This places Deagan in the top 27% 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 2003, approximately 1 in every 75,972 boys born was named Deagan. FALLING Recent data shows the name is currently falling.