Last name Geoghagan (Geoghagan 
) , across the world, is a rare surname. The cognomen Geoghagan is characteristic of the United States, where it is a very rare surname, Venezuela, where it is an extremely rare surname, and the United Kingdom.
Ann, Leon, Lisa, Jake, John, Joel, Jess, Jean, Jeff, Tami, Toni, Todd, Tina, Erin, Earl, Fred, Megan, Shane, Susan, Serah, Sonja, Alice, Lana, Allen, Greg, Gary, Amy, Kay, Pat, Jay, Joy, Tom, Tim, Mary, Mark, Mike, Sean, Alma, Anna, Carl, Beth, Kyle, Rina, Ryan, Dana, Dawn, Drew, Gene, and Angel