The Assembly of Melilla was the top-tier administrative and governing body of the autonomous city of Melilla. Voting for the Assembly was on the basis of universal suffrage, which comprised all nationals over eighteen, registered and residing in the municipality of Melilla and in full enjoyment of their political rights, as well as resident non-national European citizens and those whose country of origin allowed Spanish nationals to vote in their own elections by virtue of a treaty. The 25 members of the Assembly of Melilla were elected using the D'Hondt method and a closed list proportional representation, with a threshold of 5 percent of valid votes—which included blank ballots—being applied. Parties not reaching the threshold were not taken into consideration for seat distribution. The Mayor-President was indirectly elected by the plenary assembly. A legal clause required that mayoral candidates earned the vote of an absolute majority of members, or else the candidate of the most-voted party in the assembly was to be automatically appointed to the post. In case of a tie, a toss-up would determine the appointee. The electoral law provided that parties, federations, coalitions and groupings of electors were allowed to present lists of candidates. However, groupings of electors were required to secure the signature of a determined amount of the electors registered in Melilla. Concurrently, parties and federations intending to enter in coalition to take part jointly at an election were required to inform the relevant Electoral Commission within ten days of the election being called.
Opinion polls
The table below lists voting intention estimates in reverse chronological order, showing the most recent first and using the dates when the survey fieldwork was done, as opposed to the date of publication. Where the fieldwork dates are unknown, the date of publication is given instead. The highest percentage figure in each polling survey is displayed with its background shaded in the leading party's colour. If a tie ensues, this is applied to the figures with the highest percentages. The "Lead" column on the rightshows the percentage-point difference between the parties with the highest percentages in a given poll. When available, seat projections are also displayed below the voting estimates in a smaller font. 13 seats were required for an absolute majority in the Assembly of Melilla.
