Worldwide, Didderen (Didderen 
) is an extremely rare unknown gender forename. Much more prevalently, Didderen is the last name as well as the forename.
Jo, Rachel, Robert, Joseph, Tahnee, Tineke, Stephan, Raymond, Audric, Gaëtan, Florian, Stefanie, Jennifer, Jérémy, Frederic, Isabelle, Christophe, Thierry, Jacqueline, Sophie, E J M, Boy, Rob, Wim, Mark, Stan, Lora, John, Michel, Teun, Senne, Allan, Anouk, David, L J A, Elian, Emily, Huub, and Marie-José