A government is a body that has the authority to make and the power to enforce laws within a civil, corporate, religious, academic, or other organization or group. In its broadest sense, "to govern" means to administer or supervise, whether over a state, a set group of people, or a collection of assets.

The word government is derived from the Greek Κυβερνήτης (kyvernites), which means "steersman", "governor", "pilot" or "rudder".

Typically, "the government" refers to the executive function. In many countries (particularly those having parliamentary systems), the Government refers to the executive branch of government or a specifically named executive, i.e. the Blair Government (compare to the administration as in the Clinton administration in U.S. usage). The Welsh Assembly Government is the name of the executive branch of Wales, and Scottish Government is the unofficial term to describe the Scottish Executive. In countries using the Westminster system, the party in government will also usually control the legislature.