List of countries by system of government

The following is a list of the global systems of government.

List of countries

Presidential republic: Head of state is the head of government and is independent of legislature
Semi-presidential republic: Head of state has some executive powers and is independent of legislature; remaining executive power is vested in ministry that is subject to parliamentary confidence
Republic with an executive presidency nominated by or elected by the legislature: President is both head of state and government; ministry, including the president, may or may not be subject to parliamentary confidence
Parliamentary republic: Head of state is mostly or entirely ceremonial; ministry is subject to parliamentary confidence
Directorial republic: Head of state consists of a college of several people and is also head of government; head of state is independent of legislature
Constitutional monarchy: Head of state is mostly or entirely ceremonial; ministry is subject to parliamentary confidence
Semi-constitutional monarchy: Head of state is executive; monarch personally exercises power in concert with other institutions
Absolute monarchy: Head of state is executive; all authority vested in absolute monarch
One-party state: Head of state is executive or ceremonial; power constitutionally linked to a single political movement
Countries in which constitutional provisions for government have been suspended (e.g. Military dictatorship)
Other; no constitutionally defined basis to current regime (e.g. transitional governments)