List of political parties in Norway

This article lists political parties in Norway.

Norway has a multi-party system with numerous political parties, in which no one party can easily gain a majority of the 169 legislative seats. Parties may cooperate to form coalition governments.

The oldest political party in Norway is the Liberal Party, which was formed in 1884. Shortly afterwards, the Conservative Party was formed in opposition. The main political cleavage at the time was the issue of parliamentarism, with Liberals in favor and Conservatives in opposition. Until 1903, Norway was, for all intents and purposes, a two-party system; the smaller Moderate Liberal Party joined the Conservatives in a de facto permanent electoral coalition from the 1881 election.

During the first years of the 20th century, major electoral shifts took place. In 1903, the leftist Labour Party gained its first 5 MPs, after having captured 10% of the national vote. For the 1921 elections, the former two-round, single-member district system was replaced with proportional representation, allowing for further gains for medium-sized parties such as Labour and the Farmers' Party, which had been formed the previous year. In 1927, Labour surged to first place nationally, a position it has held in every single election since then. In 1928, they formed their first government, ending the decades-long power-alteration between Liberals and Conservatives. This government, headed by Christopher Hornsrud, was short-lived, however; it lasted a mere 18 days. The Farmers' Party followed suit, sitting in government briefly from 1931 to 1933, under Peder Kolstad and Jens Hundseid. Despite the surge of previously minor parties, the Liberals and Conservatives retained significance, with Johan Ludwig Mowinckel (1933–1935) serving as the last Liberal prime minister to date. With the onset of World War II, Johan Nygaardsvold from the Labour Party served as de jure prime minister for a decade, from 1935 to 1945.

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