In some nations, such as India, the Foreign Minister is referred to as the Minister for External Affairs; or, as in the case of Brazil, Minister of Foreign Affairs; or, still others, such as states created from the former Soviet Union, call the position the Minister of External Relations. In the United States, the equivalent to the foreign ministry is called the Department of State, and the equivalent position is known as the Secretary of State. Other common titles may include Minister of Foreign Relations. In many Spanish speaking countries in Latin America, the foreign minister is colloquially called "Canciller", in Brazil, a Portuguese-speaking country the term used is “Chanceler“.
Diplomats themselves and historians often refer to the foreign ministry by its local address, for example, the Ballhausplatz in Vienna housed the Foreign Ministry of Austria-Hungary; the Quai d'Orsay in Paris for France's Ministry of Europe and Foreign Affairs; the South Block in New Delhi for India's Ministry of External Affairs; the Itamaraty Palace in Brasília is the headquarters of the Ministry of External Relations in Brazil; the Wilhelmstraße, in Berlin, was the location of the German Foreign Office; and Foggy Bottom, a neighborhood of Washington, D.C., houses the Department of State. Indonesians also often refers to their Ministry of Foreign Affairs as "Pejambon", since the ministry's main headquarters is located at Pejambon Street, Central Jakarta. During the Russian Empire, which lasted until 1917, the term used was the Choristers' Bridge in Saint Petersburg. In contrast, the Italian ministry was called the Consulta.
A foreign minister's powers can vary from government to government. In a classic parliamentary system, a foreign minister can potentially exert significant influence in forming foreign policy but when the government is dominated by a strong prime minister the foreign minister may be limited to playing a more marginal or subsidiary role in determining policy. Similarly, the political powers invested in the foreign minister are often more limited in presidential governments with a strong executive branch. Since the end of World War II, it has been common for both the foreign minister and defense minister to be part of an inner cabinet (commonly known as a national security council) in order to coordinate defense and diplomatic policy. Although the 19th and early 20th centuries saw many heads of government assume the foreign ministry, this practice has since become uncommon in most developed nations.
Along with their political roles, foreign ministers are also traditionally responsible for many diplomatic duties, such as hosting foreign world leaders and going on state visits to other countries. The foreign minister is generally the most well-traveled member of any cabinet.
Although it is very rare for there to be any sub-national foreign minister post, sometimes there is a minor external relations position. The European Union has dealt with external relations in certain areas since its inception (see EU Trade Commissioner) and has a High Representative as its chief diplomat. However his/her duties are primarily to implement EU foreign policy, rather than formulate it.