| Maccastorna | |
| Official Name: | Comune di Maccastorna |
| Coordinates: | 45.1667°N 50°W |
| Region: | Lombardy |
| Province: | Lodi (LO) |
| Mayor: | Fabrizio Santantonio |
| Area Total Km2: | 5.75 |
| Population Footnotes: | [1] |
| Population Total: | 69 |
| Population As Of: | 30 September 2017 |
| Population Demonym: | Maccastornesi |
| Elevation M: | 45 |
| Postal Code: | 26843 |
| Area Code: | 0377 |
Maccastorna (Lodigiano: Macastùrna) is a comune (municipality) in the Province of Lodi in the Italian region Lombardy, located about 50km (30miles) southeast of Milan and about 20km (10miles) southeast of Lodi.
Sights include a 13th-14th-century castle and the c. 12th-century parish church (largely renovated in the 20th century).
Maccastorna borders the following municipalities: Crotta d'Adda, Meleti, Castelnuovo Bocca d'Adda., it is the 11th least-populated Italian commune.