Sant Sadurní d'Anoia is a municipality in the comarca of the Alt Penedès in Catalonia, Spain; and the centre of production of a sparkling wine known as cava. It is situated in the north-east of the Penedès Depression at the confluence of the Avernó river and the Anoia river. It is served by the A-7 autopista and the RENFE railway line (R4) that connect Barcelona with Manresa and El Vendrell.
The noucentista buildings of the Codorníu cava house on the edge of the town were designed by Josep Puig i Cadafalch.
Four outlying villages are included within the municipality of Sant Sadurní d'Anoia (populations as of 2005)
- Can Benet de la Prua (94)
- Can Catassús (124)
- Espiells (54), with its pre-Romanesque church of Sant Benet
- Monistrol d'Anoia (28)
The town hosted the individual road race cycling event for the 1992 Summer Olympics.
The city has a roller hockey team Club Esportiu Noia, one of the most important in Spain, and play in the main League OK Liga.