The 1986 Andalusian regional election was held on Sunday, 22 June 1986, to elect the 2nd Parliament of the autonomous community of Andalusia. All 109 seats in the Parliament were up for election. The election was held simultaneously with the 1986 Spanish general election.
The governing Spanish Socialist Workers’ Party (PSOE) renewed its mandate with a slightly reduced majority.
The Parliament of Andalusia was the devolved, unicameral legislature of the autonomous community of Andalusia, having legislative power in regional matters as defined by the Spanish Constitution of 1978 and the regional Statute of Autonomy, as well as the ability to vote confidence in or withdraw it from a regional president.
Voting for the Parliament was on the basis of universal suffrage, which comprised all nationals over eighteen, registered in Andalusia and in full enjoyment of their political rights. The 109 members of the Parliament of Andalusia were elected using the D’Hondt method and a closed listproportional representation, with an electoral threshold of three percent of valid votes—which included blank ballots—being applied in each constituency. Seats were allocated to constituencies, corresponding to the provinces of Almería, Cádiz, Córdoba, Granada, Huelva, Jaén, Málaga and Seville, with each being allocated an initial minimum of eight seats and the remaining 45 being distributed in proportion to their populations (provided that the number of seats in each province did not exceed two times that of any other).
The use of the D’Hondt method might result in a higher effective threshold, depending on the district magnitude.
The electoral law allowed for parties and federations registered in the interior ministry, coalitions and groupings of electors to present lists of candidates. Parties and federations intending to form a coalition ahead of an election were required to inform the relevant Electoral Commission within ten days of the election call, whereas groupings of electors needed to secure the signature of at least one percent of the electorate in the constituencies for which they sought election, disallowing electors from signing for more than one list of candidates.