| Castellbisbal | |
| Settlement Type: | Municipality |
| Pushpin Map: | Spain Catalonia |
| Pushpin Map Caption: | Location in Catalonia |
| Coordinates: | 41.476°N 1.983°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Spain |
| Subdivision Type1: | Autonomous community |
| Subdivision Type2: | Province |
| Subdivision Name2: | Barcelona |
| Subdivision Type3: | Comarca |
| Subdivision Name3: | Vallès Occidental |
| Leader Title: | Mayor |
| Leader Name: | Joan Playà Guirado (2015)[1] |
| Area Footnotes: | [2] |
| Area Total Km2: | 31.0 |
| Elevation M: | 132 |
| Population Density Km2: | auto |
| Population Demonym: | Castellbisbalenc |
| Postal Code: | 08755 |
| Blank Name Sec1: | Nominal GDP per capita |
| Blank Info Sec1: | 86.700 € ($99,120) [3] |
Castellbisbal (in Catalan; Valencian pronounced as /kəsˌteʎβizˈbal/) is a municipality in the comarca of Vallès Occidental in Catalonia. It is situated on the left bank of the Llobregat river at its confluence with the Rubí river. The town is served by the A-7 autopista, the main N-II road and the Renfe railway line R4 between Barcelona and València.
The remains of the Castellbisbal castle are visible on a hill near to the actual urban centre, while the surviving portionof the Pont del Diable ("Devil's Bridge") across the Llobregat river with its triumphal arch illustrates the historicalimportance of the town on the Via Augusta. The parish church of Sant Vincenç dates from the sixteenth century,while a Romanesque chapel (12th century) is in Can Pederol de Baix.