Parties
Parliamentary
Government
Sjálfstæðisflokkurinn (Independence Party)
Framsóknarflokkurinn (Progressive Party)
Vinstrihreyfingin – grænt framboð (Left-Green Movement)
Opposition
Samfylkingin – jafnaðarflokkur Íslands (The Alliance – Iceland's Social Democratic Party)
Flokkur Fólksins (People's Party)
Pírata Flokkurinn (Pirate Party)
Viðreisn (Reform Party)
Miðflokkurinn (Centre Party)
Extraparlimentary
Alþýðufylkingin (People's Front)
Sósíalistaflokkur Íslands (Icelandic Socialist Party)
Húmanistaflokkurinn (Humanist Party)
Frjálshyggjufélagið (Libertarian Society)
Frelsisflokkurinn (Freedom Party)
Íslenska þjóðfylkingin (Icelandic National Front)
Historical
Heimastjórnarflokkurinn (Home Rule Party, 1900-1923)
Sjálfstæðisflokkurinn (Independence Party, 1907-1927)- Sambandsflokkurinn (Union Party, 1912-1914)
Íhaldsflokkurinn (Conservative Party, 1924-1929)
Flokkur Þjóðernissinna (Nationalist Party, 1934-1944)
Alþýðuflokkurinn (Social Democratic Party, 1916-2000)
People
WIP
Presidents
Sveinn Björnsson (1944-1952)- Ásgeir Ásgeirsson (1952-1968)
Kristján Eldjárn (1968-1980)
Vigdís Finnbogadóttir (1980-1996)- Ólafur Ragnar Grímsson (1996-2016)
Guðni Thorlacius Jóhannesson (2016-)
Prime Ministers
Davíð Oddsson (1991-2004, Independence Party)
Halldór Ásgrímsson (2004-2006, Progressive Party)
Geir Haarde (2006-2009, Independence Party)
Jóhanna Sigurðardóttir (2009-2013, Social Democratic Alliance)
Sigmundur Davíð Gunnlaugsson (2013-2016, Progressive Party)- Sigurður Ingi Jóhannsson (2016-2017, Progressive Party)
- Bjarni Benediktsson (2017, Independence Party)
Katrín Jakobsdóttir (2017-, Left-Green Movement)
