In all the world, Bertich (Bertich 
) is an extremely rare unknown gender first name. Much more prevalently, Bertich is the last name as well as the forename.
Mr, Daniel, Gerald, Joseph, Thomas, Margary, Michael, Micheal, Abigail, Richard, Dolores, Heather, Vanessa, Florian, Caroline, Brittany, Kathleen, Kimberly, Kristina, Lorraine, Robert, Ashley, Amanda, Albert, Bob, Ryan, Dena, Gail, Lisa, Lori, John, Jill, Molly, Nicklaus, Sarah, Klaus, Rezso, David, Diane, Linda, Lynda, James, Martha, Sabine, Steve, and Annemarie