Spain's general election, set for November 29, 2026. Last: 23 Jul 2023. In power: PSOE, Sumar minority coalition. A general election will be held in Spain on 29 November 2026 to elect the members of the 16th Cortes Generales under the Spanish Constitution of 1978. All 350 seats in the Congress of Deputies will be up for election, as well as 209 of 267 seats in the Senate. Wiki link From Wikipedia's List of next general elections: Wiki link