Administrative divisions of Bosnia and Herzegovina

The political divisions of Bosnia and Herzegovina were created by the Dayton Agreement, which recognized a second tier of government in Bosnia and Herzegovina, comprising two entities: the Federation of Bosnia and Herzegovina (FBiH), with mostly Bosniaks and Croats, and the Republika Srpska (RS) with mostly Serbs – each governing roughly one half of the state's territory. The Federation of Bosnia and Herzegovina itself has a federal structure and consists of 10 autonomous cantons.

The Federation and the RS governments are charged with overseeing internal functions. Each has its own government, flag and coat of arms, president, parliament (FBiH) and assembly (RS), police force, customs, and postal system. The police sectors are overseen by the state-level ministry of safety affairs. Since 2005, Bosnia and Herzegovina has one set of Armed forces.

Inter-entity borders are not determined on natural geographical features of the region. Its borders were postulated as part of the political agreement that was based on ethnic division and are used to determine the extents of political jurisdictions within entities. On the ground, there is no active border between RS and FBiH, and one would generally not know the difference when crossing from one entity into another.

The city of Brčko in northeastern Bosnia is a seat of the Brčko district, a self-governing administrative unit; it is part of both the Federation and Republika Srpska. The district remains under international supervision.

The Federation is further divided into cantons, which are then subdivided into municipalities. Republika Srpska is divided directly into municipalities.

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