Across the world, Diderich (Diderich 
) is a very rare boy's first name. The first name Diderich is habitual in Northern Europe, particularly Norway, where it is a rare male name. Much more prevalently, Diderich is the last name as well as the forename.
Mr, Omar, Yara, Marie, Mieke, Steve, Scott, Carla, Brice, Karel, Kevin, Peter, Roger, Remko, Darin, Darci, Diane, Laura, Larry, Linda, Olaf, Ines, Eric, Neli, Ms, Sue, Bob, Jan, J C, Tom, Tim, Zoe, Marc, Logan, Mary, Paul, Ruth, Dany, Gary, John, Joao, Jean, Juan, Theo, Stã, and Janet