Mornico Losana (Murnigh in Oltrepò dialect) is a comune (municipality) in the Province of Pavia in the Italian region Lombardy, located about 50 km south of Milan and about 20km south of Pavia.

Mornico Losana is formed by hills of Oltrepò Pavese region, stretching its territory between the valleys of Verzate and Val Sorda streams.

On the top of the highest hill of the comune, the castle rises.

It is divided in the fractions of: It borders the following municipalities: Mornico Losana is connected to Pietra de Giorgi and Torricella Verzate via the SP46 (Provincial Road).

The only public transport available is the Autoguidovie Line 80,[4] with two stops: in Piazza Libertà, at the core of the comune, and in Losana; in previous years there was also a stop in Casa Guarnone.