DOS | MS-DOS | John Dos Passos | São José dos Campos | Campos dos Goytacazes | Plaza Dos de Mayo | Junior dos Santos | Graciano dos Santos Neves | Dos Pueblos High School | Dos Hermanas | Angra dos Reis | Universidade do Vale do Rio dos Sinos | Un, dos, tres... responda otra vez | José Eduardo dos Santos | Augusto dos Anjos | Ary dos Santos | Sergio Claudio dos Santos | Pau dos Ferros | Nezinho dos Santos | La Unión District, Dos de Mayo | Isabel dos Santos | ESPN Dos | Éder dos Santos | DR-DOS | DOS Protected Mode Services | DOS extender | Dos de Mayo Uprising | Dos de Mayo Province | ¡Dos! | Casa dos Estudantes do Império |
Previously, Portugal had used a system of professional accreditation and degree recognition by sector, with a number of associations, Unions and Professional Orders (Ordens Profissionais): the Ordem dos Médicos (for medical doctors), the Ordem dos Engenheiros (for engineers), and the Ordem dos Advogados (for lawyers).