Prime Minister of Norway
The prime minister of Norway is the head of government of Norway and the most powerful person in Norwegian politics. The prime minister and Cabinet are collectively accountable for their policies and actions to the monarch, to the Storting, to their political party, and ultimately the electorate. In practice, since it is nearly impossible for a government to stay in office against the will of the Storting, the prime minister is primarily answerable to the Storting. The prime minister is almost always the leader of the majority party in the Storting, or the leader of the senior partner in the governing coalition.
Norway has a constitution, which was adopted on 17 May 1814. The position of prime minister is the result of legislation. Modern prime ministers have few statutory powers, but provided they can command the support of their parliamentary party, they can control both the legislature and the executive and hence wield considerable de facto powers. As of, the prime minister of Norway is Erna Solberg, of the Conservative Party.
Unlike their counterparts in the rest of Europe, Norwegian prime ministers do not have the option of advising the king to dissolve the Storting and call a snap election. The constitution requires that the Storting serve out its full four-year term. If the prime minister loses the confidence of the Storting, they must resign.
Longest-serving prime ministers
| Nr. | Prime minister | Party | Days | Years, months, days |
| 1. | Einar Gerhardsen | Labour Party | 6226 | 17 years and 17 days |
| 2. | Johan Nygaardsvold | Labour Party | 3750 | 10 years, 3 months and 5 days |
| 3. | Gro Harlem Brundtland | Labour Party | 3691 | 10 years, 1 month and 9 days |
| 4. | Jens Stoltenberg | Labour Party | 3518 | 9 years, 7 months and 17 days |
| 5. | Gunnar Knudsen | Liberal Party | 3383 | 9 years, 3 months and 4 days |
| 6. | Johan Ludwig Mowinckel | Liberal Party | 2517 | 6 years, 10 months and 21 days |
| 7. | Erna Solberg | Conservative Party | ||
| 8. | Kjell Magne Bondevik | Christian Democratic Party | 2341 | 6 years, 4 months and 29 days |
| 9. | Johannes Steen | Liberal Party | 2311 | 6 years, 3 months and 30 days |
| 10. | Per Borten | Centre Party | 1982 | 5 years, 5 months and 5 days |
| 11. | Odvar Nordli | Labour Party | 1847 | 5 years and 20 days |