| Cabinet Name: | III Constitutional Government of Portugal |
| Jurisdiction: | Portugal |
| Flag: | Flag of Portugal.svg |
| Flag Border: | true |
| Government Head: | Alfredo Nobre da Costa |
| State Head: | António Ramalho Eanes |
| Opposition Leaders: | --> |
| Previous: | II Constitutional Government of Portugal |
| Successor: | IV Constitutional Government of Portugal |
| Political Parties: | None (support from Democratic People's Party (PPD)) |
| State Head Title: | President of the Republic |
| Government Head Title: | Prime Minister |
The III Constitutional Government of Portugal (Portuguese: III Governo Constitucional de Portugal) was the third government of the Third Portuguese Republic. It had Alfredo Nobre da Costa as the Prime Minister and lasted from 29 August 1978 to 22 November 1978.
The government was composed of the Prime Minister, one Assistant Minister to the Prime Minister, and 13 ministries comprising ministers, secretaries and sub-secretaries of state. The government also included the Ministers of the Republic for the Autonomous Regions of Azores and Madeira.[1]
| Prime Minister | Alfredo Nobre da Costa | Independent | 29 August 1978 | 22 November 1978 | ||
| Assistant Minister to the Prime Minister | Carlos Costa Freitas | Independent | 29 August 1978 | 22 November 1978 | ||
| Minister of National Defence | Mário Firmino Miguel | Independent | 29 August 1978 | 22 November 1978 | ||
| Minister of Finance and Plan | José da Silva Lopes | Independent | 29 August 1978 | 22 November 1978 | ||
| Minister of the Internal Administration | António Gonçalves Ribeiro | Independent | 29 August 1978 | 22 November 1978 | ||
| Minister of Justice | Mário Raposo | Independent | 29 August 1978 | 22 November 1978 | ||
| Minister of Foreign Affairs | Carlos Corrêa Gago | Independent | 29 August 1978 | 22 November 1978 | ||
| Minister of Agriculture and Fisheries | Apolinário Vaz Portugal | Independent | 29 August 1978 | 22 November 1978 | ||
| Minister of Industry and Technology | Fernando Santos Martins | Independent | 29 August 1978 | 22 November 1978 | ||
| Minister of Commerce and Tourism | Pedro Pires de Miranda | Independent | 29 August 1978 | 22 November 1978 | ||
| Minister of Labour | António da Costa Leal | Independent | 29 August 1978 | 22 November 1978 | ||
| Minister of Education and Culture | Carlos Lloyd Braga | Independent | 29 August 1978 | 22 November 1978 | ||
| Minister of Social Affairs | Acácio Pereira Magro | Independent | 29 August 1978 | 22 November 1978 | ||
| Minister of Transports and Communications | Amílcar Marques | Independent | 29 August 1978 | 22 November 1978 | ||
| Minister of Housing and Public Works | João Almeida Pina | Independent | 29 August 1978 | 22 November 1978 | ||
| Minister of the Republic for the Autonomous Region of Azores | Octávio Galvão de Figueiredo | Independent | 29 August 1978 | 25 September 1978 | ||
| Henrique Afonso da Silva Horta | Independent | 25 September 1978 | 22 November 1978 | |||
| Minister of the Republic for the Autonomous Region of Madeira | Lino Miguel | Independent | 29 August 1978 | 22 November 1978 | ||