Politics of Guinea takes place in a framework of a presidential representative democratic republic, whereby the President of Guinea is both head of state and head of government of Guinea. Executive power is exercised by the government. Legislative power is vested in both the government and the National Assembly.

The unicameral Assemblée nationale or National Assembly is Guinea's legislative body. Since the country's birth in 1958, it has experienced political turmoil, and elections have been called at irregular intervals, and only since 1995 have they been more than approval of a one-party state's slate of candidates. The number of seats has also fluctuated.