The second government of Adolfo Suárez was formed on 5 July 1977, following the latter's confirmation as Prime Minister of Spain by King Juan Carlos I on 17 June, as a result of the Union of the Democratic Centre (UCD) emerging as the largest parliamentary force at the 1977 general election.

[2][3] Suárez's second cabinet was initially made up by independents and members from the political parties that had run within the UCD alliance, most of whom would end up joining it upon its transformation into a full-fledged political party.

[4][5][6] It was automatically dismissed on 2 March 1979 as a consequence of the 1979 general election, but remained in acting capacity until the next government was sworn in.

[18][19] From February 1978, the council would only include two deputy prime ministers.

[16] Adolfo Suárez's second government is organised into several superior and governing units, whose number, powers and hierarchical structure may vary depending on the ministerial department.