Results breakdown of the 2023 Spanish local elections (Basque Country)

This is the results breakdown of the local elections held in the Basque Country on 28 May 2023. The following tables show detailed results in the autonomous community's most populous municipalities, sorted alphabetically.

City control
The following table lists party control in the most populous municipalities, including provincial capitals (shown in bold). Gains for a party are displayed with the cell's background shaded in that party's colour.

Barakaldo

 * Population: 100,535

Basauri

 * Population: 40,324

Bilbao

 * Population: 344,127

Donostia/San Sebastián

 * Population: 187,849

Errenteria

 * Population: 39,023

Getxo

 * Population: 76,365

Irun

 * Population: 62,635

Portugalete

 * Population: 44,800

Santurtzi

 * Population: 45,749

Vitoria-Gasteiz

 * Population: 253,672