In the world, Petersén (Petersén 
) is an extremely rare unknown gender first name. Much more frequently, Petersén is the last name as well as the forename.
Eva, Ellen, Frida, Filip, Oscar, Melvin, Mikael, Stefan, Anders, Anette, Barbro, Daniel, Gustav, Jesper, Thomas, Niclas, Henrik, Viktor, Ulrika, Martina, Marlene, Matilda, Tiara, Julia, Johan, Jakob, Sara, Anna, Carl, Klas, Gert, Lars, Lena, John, Emma, Olga, Susanne, Åsa, Marie, Malin, Simon, Conny, Claes, Bodil, Kajsa, Laila, Linus, Lotta, Maria, and Annelie