Martiniana Po is a comune, or municipality, situated in the Piedmont region of northern Italy. It is located within the Province of Cuneo, positioned approximately 60 kilometres (37 mi) southwest of Turin and about 25 kilometres (16 mi) northwest of Cuneo.
The town is geographically situated in the lower Valle Po area on the opposite side of the Po River. It serves as a local administrative center within this specific region of the Piedmontary landscape.