The 1987 Spanish regional elections were held on Wednesday, 10 June 1987, to elect the regional parliaments of thirteen of the seventeen autonomous communities—Aragon, Asturias, the Balearic Islands, the Canary Islands, Cantabria, Castile and León, Castilla–La Mancha, Extremadura, La Rioja, Madrid, Murcia, Navarre and the Valencian Community—, not including Andalusia, the Basque Country, Catalonia and Galicia, which had separate electoral cycles.

However, it suffered from a drop in popular support which saw it losing many of the absolute majorities it had obtained four years previously.

As a result, several centre-right coalitions and alliances were able to oust the Socialists from government in four out of the twelve regional administrations it had held previous to the election.

Benefitting from the two main parties's fall was former Spanish Prime Minister Adolfo Suárez's Democratic and Social Centre (CDS), which became decisive for government formation in many regional assemblies.

The highest percentage figure in each polling survey is displayed with its background shaded in the leading party's colour.