Marciana is a ''frazione'' (subdivision or hamlet) of the municipality of Cascina, located in the Province of Pisa, in the Tuscany region of Italy.
- Location: Marciana is situated within the administrative boundaries of the Comune di Cascina, which lies in the western part of Tuscany, southeast of the city of Pisa. Cascina itself is a significant agricultural and industrial center in the lower Arno Valley.
- Overview: As a ''frazione'', Marciana represents a smaller populated area or village within the larger municipality of Cascina. These subdivisions are common in Italy and serve to organize local administration and identify specific communities. The area, like much of Cascina, typically features a mix of residential buildings, local services, and agricultural landscapes characteristic of the Tuscan countryside.
- Administration: While possessing its own local identity, Marciana falls under the direct governance and administration of the Cascina municipal council for public services, infrastructure development, and local regulations. Residents of Marciana participate in the civic life and elections of the broader Cascina municipality.