Decuriones, magistrates in the provincial municipia of the Roman state corresponding to the senate at Rome. In the later times of the republic, the state was considered in two distinct parts, Italy and the provinces. Italy consisted of a multitude of commonwealths, whose citizens had become members of the sovereign people, maintaining the internal administration of their own affairs. Originally the popular assemblies had the sovereign power in the municipia, and conferred the executive authority upon the decuriones. They consisted at first of ten men, but in later times they frequently numbered more, and sometimes even amounted to 100. Each curia decurionum was presided over by two members who were called duumviri, and whose powers within their municipium resembled those of the Roman consuls during peace. Under the republic the whole administration of the internal affairs of their respective cities was in the hands of the decuriones; but after the establishment of the empire they exercised nearly all the circumscribed rights of the communities, though finally they were little more than receivers of taxes.

The decuriones were created by election on the kalends of March, and each was required to be at least 25 years old, and to possess a certain income.