Premier is a title for the head of government

Head of government

Head of government is the chief officer of the executive branch of a government, often presiding over a cabinet. In a parliamentary system, the head of government is often styled prime minister, chief minister, premier, etc...

 in some countries and states.
In many nations, "premier" is used interchangeably with "prime minister

Prime minister

A prime minister is the most senior minister of cabinet in the executive branch of government in a parliamentary system. In many systems, the prime minister selects and may dismiss other members of the cabinet, and allocates posts to members within the government. In most systems, the prime...

". In the People's Republic of China

People's Republic of China

China , officially the People's Republic of China , is the most populous country in the world, with over 1.3 billion citizens. Located in East Asia, the country covers approximately 9.6 million square kilometres...

, "premier" is more common, but "prime minister" is still used (see Premier of the People's Republic of China

Premier of the People's Republic of China

The Premier of the State Council of the People's Republic of China , sometimes also referred to as the "Prime Minister" informally, is the Leader of the State Council of the People's Republic of China , who is the head of government and holds the highest-ranking of the Civil service of the...

).

In four of the British overseas territories

British overseas territories

The British Overseas Territories are fourteen territories of the United Kingdom which, although they do not form part of the United Kingdom itself, fall under its jurisdiction. They are remnants of the British Empire that have not acquired independence or have voted to remain British territories...

, (Bermuda

Bermuda

Bermuda is a British overseas territory in the North Atlantic Ocean. Located off the east coast of the United States, its nearest landmass is Cape Hatteras, North Carolina, about to the west-northwest. It is about south of Halifax, Nova Scotia, Canada, and northeast of Miami, Florida...

, the Cayman Islands

Cayman Islands

The Cayman Islands is a British Overseas Territory and overseas territory of the European Union located in the western Caribbean Sea. The territory comprises the three islands of Grand Cayman, Cayman Brac, and Little Cayman, located south of Cuba and northwest of Jamaica...

, the Turks and Caicos Islands

Turks and Caicos Islands

The Turks and Caicos Islands are a British Overseas Territory and overseas territory of the European Union consisting of two groups of tropical islands in the Caribbean, the larger Caicos Islands and the smaller Turks Islands, known for tourism and as an offshore financial centre.The Turks and...

, and the British Virgin Islands

British Virgin Islands

The Virgin Islands, often called the British Virgin Islands , is a British overseas territory and overseas territory of the European Union, located in the Caribbean to the east of Puerto Rico. The islands make up part of the Virgin Islands archipelago, the remaining islands constituting the U.S...

), the elected heads of government

Head of government

Head of government is the chief officer of the executive branch of a government, often presiding over a cabinet. In a parliamentary system, the head of government is often styled prime minister, chief minister, premier, etc...

 are styled as "Premier". In other overseas territories the equivalent post is styled as Chief Minister

Chief Minister

A Chief Minister is the elected head of government of a sub-national state, provinces of Sri Lanka, Pakistan, notably a state of India, a territory of Australia or a British Overseas Territory that has attained self-government...

.

"Premier" is also the title of the heads of government in sub-national entities

Administrative division

An administrative division, subnational entity, or country subdivision is a portion of a country or other political division, established for the purpose of government. Administrative divisions are each granted a certain degree of autonomy, and are required to manage themselves through their own...

, such as the provinces and territories

Provinces and territories of Canada

The provinces and territories of Canada combine to make up the world's second-largest country by area. There are ten provinces and three territories...

 of Canada

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

, states

States and territories of Australia

The Commonwealth of Australia is a union of six states and various territories. The Australian mainland is made up of five states and three territories, with the sixth state of Tasmania being made up of islands. In addition there are six island territories, known as external territories, and a...

 of the Commonwealth of Australia, provinces

Provinces of South Africa

South Africa is currently divided into nine provinces. On the eve of the 1994 general election, South Africa's former homelands, also known as Bantustans, were reintegrated and the four existing provinces were divided into nine. The twelfth, thirteenth and sixteenth amendments to the constitution...

 of South Africa

South Africa

The Republic of South Africa is a country in southern Africa. Located at the southern tip of Africa, it is divided into nine provinces, with of coastline on the Atlantic and Indian oceans...

, the island of Nevis

Nevis

Nevis is an island in the Caribbean Sea, located near the northern end of the Lesser Antilles archipelago, about 350 km east-southeast of Puerto Rico and 80 km west of Antigua. The 93 km² island is part of the inner arc of the Leeward Islands chain of the West Indies...

 within the Federation of Saint Kitts and Nevis

Saint Kitts and Nevis

The Federation of Saint Kitts and Nevis , located in the Leeward Islands, is a federal two-island nation in the West Indies. It is the smallest sovereign state in the Americas, in both area and population....

, and the nation of Niue

Niue

Niue , is an island country in the South Pacific Ocean. It is commonly known as the "Rock of Polynesia", and inhabitants of the island call it "the Rock" for short. Niue is northeast of New Zealand in a triangle between Tonga to the southwest, the Samoas to the northwest, and the Cook Islands to...

.