Sant Vicenç de Castellet is a municipality in the comarca of the Bages in Catalonia, Spain. It is situated near the confluence of the Llobregat river and the Cardener river. The railway station serves both the FGC line R5 between Barcelona and Manresa and the Renfe line between Barcelona and Zaragoza, served by Rodalies lines R4 and R12. The C-1411 road links the municipality with Martorell and Manresa. The ruins of both the Castellet castle and of a Roman tomb are visible.