The politics of Saint Kitts and Nevis takes place in the framework of a federal parliamentary democracy. Saint Kitts and Nevis is an independent Commonwealth realm with Charles III as its head of state, viceregally represented by a Governor-General. He acts on the advice of the prime minister, who is the majority party leader in the National Assembly, and who, with a cabinet, conducts affairs of state.

The National Assembly and the King of Saint Christopher and Nevis jointly make up the legislature of Saint Kitts and Nevis.