| | Title Date of creation Surname First titular |
| | Duke of Abrantes December 9, 1753 Lorena Ana Maria Catarina Henriqueta de Lorena |
| | Duke of Albuquerque May 19, 1886 Costa de Sousa de Macedo João Afonso da Costa de Sousa de Macedo |
| | Duke of Aveiro b. 1535 Lencastre\nMascarenhas da Silva e Lencastre John of Lencastre, 1st Marquis of Torres Novas |
| | Duke of Ávila and Bolama May 14, 1878 Ávila António José de Ávila |
| | Duke of Barcelos August 5, 1562 Bragança John, 6th Duke of Braganza |
| | Duke of Beja 1453 Portugal-Aviz\nBragança Ferdinand, Duke of Viseu |
| | Duke of Braganza 1442 Bragança Afonso, Count of Barcelos |
| | Duke of Cadaval April 26, 1648 Álvares Pereira de Melo Nuno Álvares Pereira de Melo |
| | Duke of Caminha December 14, 1620 Menezes Miguel Luís de Menezes |
| | Duke of Coimbra 1415 Portugal-Aviz\nLencastre\nBragança Pedro, Prince of Portugal |
| | Duke of Faial April 4, 1833 Sousa Holstein Pedro de Sousa Holstein |
| | Duke of Ficalho May 14, 1836 Almeida Eugénia Maurícia Tomásia de Almeida Portugal |
| | Duke of Goa 1515 Albuquerque Afonso de Albuquerque |
| | Duke of Guarda October 5, 1530 Portugal-Aviz Ferdinand, Prince of Portugal |
| | Duke of Guimarães 1475 Bragança Fernando II, Duke of Braganza |
| | Duke of Lafões February 17, 1718 Bragança\nBragança e Ligne de Sousa Tavares Mascarenhas da Silva Pedro Henrique de Bragança |
| | Duke of Linhares ? Noronha Fernando de Noronha |
| | Duke of Loulé October 3, 1852 Mendonça Rolim de Moura Barreto Nuno José Severo de Mendonça Rolim de Moura Barreto |
| | Duke of Miranda do Corvo May 13, 1796 Bragança e Ligne de Sousa Tavares Mascarenhas da Silva José Sousa Tavares Mascaranhas da Silva |
| | Duke of Palmela October 10, 1850 Sousa Holstein Pedro de Sousa Holstein |
| | Duke of Porto 1833 Bragança Maria, Princess of Portugal\n(future Queen Maria II) |
| | Duke of Saldanha November 4, 1846 Saldanha Oliveira e Daun João Francisco de Saldanha Oliveira e Daun |
| | Duke of Tancos April 22, 1790 Manoel Constança Manoel |
| | Duke of Terceira November 8, 1832 Manoel e Meneses Severim de Noronha António José de Sousa Manoel e Meneses Severim de Noronha |
| | Duke of Torres Novas September 26, 1619 Lencastre George of Lencastre |
| | Duke of Trancoso 1530 Portugal-Aviz Ferdinand, Prince of Portugal |
| | Duke of Vila Real February 28, 1585 Menezes Manuel de Menezes |
| | Duke of Viseu 1415 Portugal-Aviz Henry, the Navigator, Prince of Portugal |
| | Duke of Vitória December 12, 1812 Wellesley Arthur Wellesley, Duke of Wellington |
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