The 2023 Melilla Assembly election was held on Sunday, 28 May 2023, to elect the 8th Assembly of the autonomous city of Melilla. All 25 seats in the Assembly were up for election. The election was held simultaneously with regional elections in twelve autonomous communities and local elections all throughout Spain.

The 2023 Spanish local elections were held on Sunday, 28 May 2023, to elect all 66,976 councillors in the municipalities of Spain, all 1,191 provincial seats in 41 provinces and 233 seats in eleven island councils. The elections were held simultaneously with regional elections in twelve autonomous communities, as well as local elections in the three foral deputations of the Basque Country, the four island councils in the Balearic Islands and the seven island cabildos in the Canary Islands.