Worldwide, Decet (Decet 
) is an extremely rare unknown gender first name. Much more prevalently, Decet is the last name as well as the forename.
Mr, Paola, Pedro, Devis, David, Diego, Guido, Laura, Lauro, Larry, Lidia, Lonny, Luana, Joana, Neiva, Elisa, Elena, Ennio, Fabio, Martin, Mattia, Maxime, Kevin, Bruno, Carla, Sofia, Ann, Sara, Anna, Anne, Dina, Gary, Gene, Luca, Luiz, John, Monika, Joao, Juan, Tais, Enzo, Iris, Ilva, Maria, Mario, Marco, Mauro, Mirco, Jean, and Mirtha