Pecetto di Valenza is a commune located in the Province of Alessandria within the Piedmont region of northwest Italy. It currently has a population of 1,282 residents.
The town is situated south of the river Po and approximately 8 kilometres northeast of the provincial capital, Alessandria. Geographically, it sits on an eastern spur of the hills of the Basso Monferrato region.
Pecetto di Valenza shares borders with several neighboring municipalities, including Alessandria, Bassignana, Montecastello, Pietra Marazzi, and Valenza.