Worldwide, Erdtmann (Erdtmann 
) is an extremely rare unknown gender forename. Much more frequently, Erdtmann is the last name as well as the forename.
Mr, Sarah, Andre, Bernd, Boris, Karin, Petra, Peter, David, Diogo, Maria, Jacob, Joice, Julia, Julie, Jörg, Hanna, Heiko, Frank, Felix, Marion, Jonas, Hans, Eric, Nina, Ms, Ana, Geb, Leo, Jan, Udo, Ute, Mary, Mark, Mike, Sven, Arno, Amee, Knut, Paul, Rick, Jane, Jose, John, Jean, Nate, Martin, and Martha