Cognomen Gueff (Gueff 
) , around the world, is a very rare last name. The family name Gueff is habitual in Brazil, where it is a very rare surname, and the United States, where it is an extremely rare surname.
Ana, Flavia, Isabel, Yannis, Marcela, Marcelo, Matheus, Michele, Antonio, Adriana, Camilly, Placido, Daniela, Leandro, Josiane, Jussara, Patricia, Danielly, Geovanna, Edileusa, Aparecida, Cristiano, Valdir, Ericka, Daniel, Debora, Kaua, Luiz, Jose, Nair, Maria, Cilas, Bryan, Pedro, Diego, Lucas, Guilherme, Luana, Edson, Erick, Marcio, Milton, Steven, Andrea, Ariane, Carlos, Cibele, Bianca, Ellen, and Francielli