Meaning A variant form of the name Keegan meaning 'descendant of Aodhagan'. Origin of Keagan Celtic , Irish Popular Middle Names Alexander, Michael, Ray, James, Lee, Alex, Scott, Steele, Stuart, Timothy Pronunciation 🔊 Listen Keagan KIYGahN Similar Names Ryan Maitiu Niul Ayan Arni Jerron Dorrell Kristopher Barshamin Geiri Year by Year Popularity of Keagan