Family name Koertgen (Koertgen 
) , in the entire world, is a very rare cognomen. The surname Koertgen is characteristic of Germany, where it is a very rare surname, and the United States. Very seldom, Koertgen is the forename as well as the last name.
Mr, Heidi, Sascha, Robert, Lenore, Martina, Matthew, Maureen, Michael, Bernard, Richard, Darlene, Gregory, Timothy, Heather, Michelle, Tracy, Kristine, James, Laura, Ms, Amy, Bob, Mike, Kirk, Ryan, Lynn, Joni, Erin, Scott, Autum, Bobby, Brian, Karen, Kathy, Jacob, and Dolorita