Overview
A deputy prime minister or vice prime minister is, in some countries, a government minister who can take the position of acting prime minister when the prime minister is temporarily absent. The position is often likened to that of a vice president, as both positions are "number two" offices, but there are some differences.
The states of Australia and provinces of Canada each have the analogous office of deputy premier. In the devolved administrations of the United Kingdom, an analogous position is that of the deputy First Minister, albeit the position in Northern Ireland has equivalent powers to the First Minister differing only in the titles of the offices. In Canada, the position of deputy prime minister should not be confused with the Canadian deputy minister of the prime minister of Canada, a nonpolitical civil servant position.
In Austria and Germany, the officeholder is known as vice-chancellor.
A deputy prime minister traditionally serves as acting prime minister when the prime minister is temporarily absent or incapable of exercising power. The deputy prime minister is often asked to succeed to the prime minister's office following the prime minister's sudden death or unexpected resignation, but that is not necessarily mandated by the constitution. This government position is often a job that is held simultaneously with another ministry, and is usually given to one of the most senior or experienced ministers of the cabinet. The holder of this office may also be deputy leader of the governing party, or perhaps the leader of the junior party of a coalition government.
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