Results breakdown of the 2023 Spanish local elections (Catalonia)

This is the results breakdown of the local elections held in Catalonia 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.

Badalona
Population: 223,506

Barcelona
Population: 1,636,193

Cornellà de Llobregat
Population: 89,039

Girona
Population: 102,666

L'Hospitalet de Llobregat
Population: 265,444

Lleida
Population: 140,797

Mataró
Population: 128,956

Reus
Population: 106,741

Sabadell
Population: 215,760

Sant Cugat del Vallès
Population: 95,725

Santa Coloma de Gramenet
Population: 117,981

Tarragona
Population: 134,883

Terrassa
Population: 224,114