Regulamentul Organic (Romanian name, translated as Organic Statute or Organic Regulation; French: Règlement Organique, Russian: Органический регламент, Organichesky reglament) was a quasi-constitutional organic law enforced in 1834–1835 by the Imperial Russian authorities in Moldavia and Wallachia (the two Danubian Principalities that were to become the basis of the modern Romanian state). The document partially confirmed the traditional government (including rule by the hospodars) and set up a common Russian protectorate which lasted until 1854. The Regulament itself remained in force until 1858. Conservative in its scope, it also engendered a period of unprecedented reforms which provided a setting for the Westernization of the local society. The Regulament offered the two Principalities their first common system of government.
The two principalities, owing tribute and progressively ceding political control to the Ottoman Empire since the Middle Ages, had been subject to frequent Russian interventions as early as the Russo-Turkish War (1710–1711), when a Russian army penetrated Moldavia and Emperor Peter the Great probably established links with the Wallachians. Eventually, the Ottomans enforced a tighter control on the region, effected under Phanariote hospodars (who were appointed directly by the Porte). Ottoman rule over the region remained contested by competition from Russia, which, as an Eastern Orthodox empire with claim to a Byzantine heritage, exercised notable influence over locals. At the same time, the Porte made several concessions to the rulers and boyars of Moldavia and Wallachia, as a means to ensure the preservation of its rule.