A revolutionary republic is a form of government whose main tenets are popular sovereignty, rule of law, and representative democracy. It is based in part on the ideas of Whig and Enlightenment thinkers, and was favored by revolutionaries during the Age of Revolution. A revolutionary republic tends to arise from the formation of a provisional government after the overthrow of an existing state and political regime. It often takes the form of a revolutionary state, which represents the will of its constituents.
The term also refers to the form of government that the National Convention favored during the French Revolutionary Wars, as France established republics through its occupation of neighboring territories in Europe. Most of these client states, or sister republics, were means of controlling occupied lands through a mix of French and local authority. The institution of republican governments as a means of promoting democratic nationalism over monarchies (primarily the Bourbons and Habsburgs) set the stage for the appearance of nationalist sentiment across Europe, which significantly influenced the course of European history (see 1830 and Revolutions of 1848).
Today, "revolutionary republic" can refer to various governments in disparate locations. In the United Kingdom, it can be defined as those who advocate for the removal of the monarch as head of state, or for the replacement of the monarch with an elected figurehead, as in Irish nationalism. In Australia, revolutionary republicanism is closely tied to moderate nationalism, along with opposition to monarchy.