| Martignana di Po | |
| Official Name: | Comune di Martignana di Po |
| Coordinates: | 45°N 32°W |
| Region: | Lombardy |
| Province: | Cremona (CR) |
| Mayor: | Alessandro Gozzi |
| Area Total Km2: | 14.7 |
| Population Footnotes: | [1] |
| Population Total: | 2018 |
| Population As Of: | 28 February 2017 |
| Population Demonym: | Martignanesi |
| Elevation M: | 26 |
| Postal Code: | 26040 |
| Area Code: | 0375 |
Martignana di Po (Casalasco-Viadanese: Martgnàna) is a comune (municipality) in the Province of Cremona in the Italian region Lombardy, located about 110km (70miles) southeast of Milan and about 30km (20miles) southeast of Cremona.
Martignana di Po borders the following municipalities: Casalmaggiore, Casteldidone, Colorno, Gussola, San Giovanni in Croce, Sissa Trecasali.