Second government of Carlos Arias Navarro

The second government of Carlos Arias Navarro was formed on 12 December 1975, following the latter's confirmation as Prime Minister of Spain by King Juan Carlos I on 5 December, as a result of his enthronement as the new head of state of Spain following dictator Francisco Franco's death on 20 November 1975. It succeeded the first Arias Navarro government and was the Government of Spain from 12 December 1975 to 5 July 1976, a total of 8241 days days, or 6 months, 26 days.

Arias Navarro's second cabinet was the first to serve under the restored monarchy of Spain, and was made up of members from the National Movement (which comprised the FET y de las JONS—the only legal political party during the Francoist regime—the military and aligned-nonpartisan figures from the civil service), but would also see the incorporation of members from legal associations, societies and groups—not yet political parties—such as Manuel Fraga's Federation of Independent Studies (FEDISA), the Spanish People's Union (UDPE) and the Spanish Democratic Union (UDE). Further, the death of Franco would see amendments in the regulations of the Cortes Españolas that would allow legislators to group into parliamentary factions, with one such faction, the Independent Parliamentary Group (GPI), being also present in the government through the figure of Rodolfo Martín Villa.

Proving incapable of adapting to the coming changes and reluctant to democratize the regime, Arias Navarro would submit his resignation as prime minister on 1 July 1976. In accordance with the legal provisions within the Organic Law of the State, the cabinet remained in place with Deputy Prime Minister Fernando de Santiago as acting prime minister until the appointment of Adolfo Suárez a few days later, with all ministers being automatically dismissed upon the election of the new prime minister.

Council of Ministers
The Council of Ministers was structured into the offices for the prime minister, the three deputy prime ministers and 20 ministries, including one minister without portfolio.

{| class="wikitable" ! Portfolio ! Name ! width="100px" colspan="2"| Faction ! width="135px"| Took office ! width="135px"| Left office ! Ref. ! colspan="7"|
 * colspan="7" bgcolor="#F2F2F2" align="center"| ← Arias Navarro II Government → (12 December 1975 – 5 July 1976)
 * colspan="7" bgcolor="#F2F2F2" align="center"| ← Arias Navarro II Government → (12 December 1975 – 5 July 1976)
 * rowspan="2"| Prime Minister
 * Carlos Arias Navarro
 * width="1" style="background-color:;"|
 * Nonpartisan
 * 5 December 1975
 * 1 July 1976
 * align="center"|
 * colspan="6"| Fernando de Santiago served in acting capacity from 1 to 5 July 1976.
 * colspan="6"| Fernando de Santiago served in acting capacity from 1 to 5 July 1976.
 * colspan="6"| Fernando de Santiago served in acting capacity from 1 to 5 July 1976.
 * Deputy Prime Minister for Defence Affairs Minister without portfolio
 * Fernando de Santiago
 * style="background-color:;"|
 * Military
 * 12 December 1975
 * 5 July 1976
 * align="center"|
 * Deputy Prime Minister for Interior Affairs Minister of Governance
 * Manuel Fraga
 * style="background-color:#A0A0A0;"|
 * FEDISA
 * 12 December 1975
 * 5 July 1976
 * align="center"|
 * Deputy Prime Minister for Economic Affairs Minister of Finance
 * Juan Miguel Villar Mir
 * style="background-color:;"|
 * Nonpartisan
 * 12 December 1975
 * 5 July 1976
 * align="center"|
 * Minister of Foreign Affairs
 * José María de Areilza
 * style="background-color:#A0A0A0;"|
 * FEDISA
 * 12 December 1975
 * 5 July 1976
 * align="center"|
 * Minister of Justice
 * Antonio Garrigues Díaz-Cañabate
 * style="background-color:;"|
 * Nonpartisan
 * 12 December 1975
 * 5 July 1976
 * align="center"|
 * Minister of the Army
 * Félix Álvarez-Arenas
 * style="background-color:;"|
 * Military
 * 12 December 1975
 * 5 July 1976
 * align="center"|
 * Minister of the Navy
 * Gabriel Pita da Veiga
 * style="background-color:;"|
 * Military
 * 12 December 1975
 * 5 July 1976
 * align="center"|
 * Minister of Public Works
 * Antonio Valdés González-Roldán
 * style="background-color:;"|
 * Nonpartisan
 * 12 December 1975
 * 5 July 1976
 * align="center"|
 * Minister of Education and Science
 * Carlos Robles Piquer
 * style="background-color:;"|
 * Nonpartisan
 * 12 December 1975
 * 5 July 1976
 * align="center"|
 * Minister of Labour
 * José Solís Ruiz
 * style="background-color:;"|
 * FET–JONS
 * 12 December 1975
 * 5 July 1976
 * align="center"|
 * Minister of Industry
 * Carlos Pérez de Bricio
 * style="background-color:#A0A0A0;"|
 * FEDISA
 * 12 December 1975
 * 5 July 1976
 * align="center"|
 * Minister of Agriculture
 * Virgilio Oñate Gil
 * style="background-color:;"|
 * UDE
 * 12 December 1975
 * 5 July 1976
 * align="center"|
 * Minister of the Air
 * Carlos Franco Iribarnegaray
 * style="background-color:;"|
 * Military
 * 12 December 1975
 * 5 July 1976
 * align="center"|
 * Minister of Trade
 * Leopoldo Calvo-Sotelo
 * style="background-color:#A0A0A0;"|
 * FEDISA
 * 12 December 1975
 * 5 July 1976
 * align="center"|
 * Minister of Information and Tourism
 * Adolfo Martín-Gamero
 * style="background-color:;"|
 * Nonpartisan
 * 12 December 1975
 * 5 July 1976
 * align="center"|
 * Minister of Housing
 * Francisco Lozano Vicente
 * style="background-color:;"|
 * Nonpartisan
 * 12 December 1975
 * 5 July 1976
 * align="center"|
 * Minister of the Presidency
 * Alfonso Osorio
 * style="background-color:;"|
 * UDE
 * 12 December 1975
 * 5 July 1976
 * align="center"|
 * Minister for Trade Union Relations
 * Rodolfo Martín Villa
 * style="background-color:;"|
 * GPI
 * 12 December 1975
 * 5 July 1976
 * align="center"|
 * Minister Secretary-General of the Movement
 * Adolfo Suárez
 * style="background-color:;"|
 * UDPE
 * 12 December 1975
 * 5 July 1976
 * align="center"|
 * Minister of Development Planning
 * colspan="6"| Alfonso Osorio took on the ordinary discharge of duties from 12 December 1975 to 9 January 1976.
 * colspan="7"|
 * Minister for Trade Union Relations
 * Rodolfo Martín Villa
 * style="background-color:;"|
 * GPI
 * 12 December 1975
 * 5 July 1976
 * align="center"|
 * Minister Secretary-General of the Movement
 * Adolfo Suárez
 * style="background-color:;"|
 * UDPE
 * 12 December 1975
 * 5 July 1976
 * align="center"|
 * Minister of Development Planning
 * colspan="6"| Alfonso Osorio took on the ordinary discharge of duties from 12 December 1975 to 9 January 1976.
 * colspan="7"|
 * Minister of Development Planning
 * colspan="6"| Alfonso Osorio took on the ordinary discharge of duties from 12 December 1975 to 9 January 1976.
 * colspan="7"|
 * colspan="7"|

Changes January 1976
! Portfolio ! Name ! colspan="2"| Faction ! Took office ! Left office ! Ref.
 * colspan="6"| Disestablished on 9 January 1976.
 * }
 * colspan="6"| Disestablished on 9 January 1976.
 * }