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In all the world, Guelso (Guelso ) is an extremely rare unknown gender forename. Much more frequently, Guelso is the last name as well as the forename.
Gülso, and Гелсо
Rita, Leonardo, Rogerio, Michael, Mafalda, Jurema, Danilo, Camila, Carine, Adolfo, Amanda, Andrio, Suzana, Salete, Sandra, Zelia, Olina, Telmo, Tania, Jorge, Luana, Luisa, Cesar, Celso, Maria, Igor, Enio, Lara, Elizabet, and Marcelino