Globally, Birchen (Birchen 
) is a very rare unisex forename. More frequently, Birchen is the last name as well as the forename.
Kim, Rodney, Roland, Rhonda, Teresa, Evelyn, Sabrina, Cameron, Kathryn, Raymond, Richard, Dorreen, Georges, Luciano, Jessica, Heather, Florent, William, Christel, Caroline, Philippe, Jennifer, Pierre, Cheryl, Andrew, Meghyn, Ugo, Marc, Adam, Paul, Lois, Loic, John, Yoan, Susan, Serge, Terressa, Sonja, Carlo, Conny, Kathy, Kevin, Debra, Dulce, Gayle, Havon, Hilda, Molita, Amber, and François