sadrosho (Georgian: სადროშო; literally, "of a banner") was an administrative division in medieval and early modern Georgia which supplied men for a subdivision of the army marked by its own banner. A tactical unit furnished by this territorial unit was also known as sadrosho, each under the command of a military official, sardali.

The origin of the sadrosho system traces its origin to the period of a united Georgian monarchy, the Bagratid kingdom of Georgia (1008–1491), which, according to the 18th-century historian Prince Vakhushti, was subdivided into four principal sadrosho:

With the fragmentation of the Kingdom of Georgia in the latter half of the 15th century, the unified military organization collapsed and the three successor kingdoms—Kakheti, Kartli, and Imereti—reestablished their own systems of sadrosho. In Kakheti, newly created sadrosho were put under the command of bishops, generally more loyal to the king than princes (tavadi), who filled the similar positions in Kartli, usually as hereditary offices, and were prone to defiance to the central royal authority. Over time, the number and administration of sadrosho underwent several changes, but the system survived until the Russian annexation of the Georgian monarchies in the early 19th century.