Political parties in Australia

This article lists political parties in Australia.

The Australian federal parliament has a number of distinctive features including compulsory voting, with full-preference instant-runoff voting in single-member seats to elect the lower house, the Australian House of Representatives, and the use of optional preferential voting to elect the upper house, the Australian Senate.

Australia has a mild two-party system, with two dominant political groupings in the Australian political system, the Australian Labor Party and the Liberal/National Coalition. Federally, five of the 150 members of the lower house (Members of Parliament, or MPs) are not members of major parties, as are 20 of the 76 members of the upper house (senators).

Two political groups dominate the Australian political spectrum, forming a de facto two-party system. One is the Australian Labor Party (ALP), a centre-left party which is formally linked to the Australian labour movement. Formed in 1893, it has been a major party federally since 1901, and has been one of the two major parties since the 1910 federal election. The ALP is in government in Victoria, Queensland, Western Australia, South Australia, the Northern Territory and the Australian Capital Territory.

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