| Country | Political parties and leaders |
| Afghanistan | Afghanistan's Islamic Mission Organization [Abdul Rasoul SAYYAF]; Afghanistan's Welfare Party [Meer Asef ZAEEFI]; Afghan Social Democratic Party [Anwarul Haq AHAD]; Islamic Movement of Afghanistan [Sayed Hussain ANWARI]; Islamic Party of Afghanistan [Mohammad Khalid FAROOQI, Abdul Hadi ARGHANDIWAL]; Islamic Society of Afghanistan [Ustad RABBANI]; Islamic Unity of the Nation of Afghanistan Party [Qurban Ali URFANI]; Islamic Unity Party of Afghanistan [Mohammad Karim KHALILI]; Islamic Unity Party of the People of Afghanistan [Haji Mohammad MOHAQQEQ]; Law and Justice Party [Hanif ATMAR]; National Islamic Movement of Afghanistan [Pir Sayed Ahmad GAILANEE]; National Islamic Movement of Afghanistan [Sayed NOORULLAH]; National Solidarity Movement of Afghanistan [Pir Sayed Eshaq GAILANEE]; National Linkage Party of Afghanistan [Sayed Mansoor NADERY]; United Islamic Party of Afghanistan [Ustad Mohammad AKBARI]; note - includes only political parties approved by the Ministry of Justice |
| Akrotiri | void |
| Albania | Democratic Party or PD [Sali BERISHA]; New Democracy Party or PDR [Genc POLLO]; Party for Justice and Integration or PDI [Shpetim IDRIZ]; Republican Party or PR [Fatmir MEDIU]; Social Democracy Party or PDS [Paskel MILO]; Social Democratic Party or PSD [Skender GJINUSHI]; Socialist Movement for Integration or LSI [Ilir META]; Socialist Party or PS [Edi RAMA]; Unity for Human Rights Party or PBDNJ [Vangjel DULE] |
| Algeria | Ahd 54 [Ali Fauzi REBAINE]; Algerian National Front or FNA [Moussa TOUATI]; Movement of the Society of Peace or MSP [Boudjerra SOLTANI]; National Democratic Rally (Rassemblement National Democratique) or RND [Ahmed OUYAHIA]; National Liberation Front or FLN [Abdelaziz BELKHADEM, secretary general]; National Reform Movement or Islah [Ahmed ABDESLAM] (formerly MRN); Rally for Culture and Democracy or RCD [Said SADI]; Renaissance Movement or EnNahda Movement [Fatah RABEI]; Socialist Forces Front or FFS [Hocine Ait AHMED]; Workers Party or PT [Louisa HANOUNE] note: a law banning political parties based on religion was enacted in March 1997 |
| American Samoa | Democratic Party [Oreta M. TOGAFAU]; Republican Party [Tautai A. F. FAALEVAO] |
| Andorra | there are four political parties at the national level: Andorra for Change or ApC [Eusebio NOMEN CALVET]; Democrats for Andorra or DA [Antoni MARTI PETIT], coalition including Liberal Party (PRA) and Reformist Coalition; Greens of Andorra [Isabel LOZANO MUNOZ]; Social Democratic Party or PS [Jaume BARTUMEU CASSANY]; note - there are also several smaller parties at the Parish level (one is Lauredian Union) |
| Angola | National Front for the Liberation of Angola or FNLA [Ngola KABANGU]; National Union for the Total Independence of Angola or UNITA [Isaias SAMAKUVA] (largest opposition party); New Democracy Electoral Union or ND [Quintino de MOREIRA]; Popular Movement for the Liberation of Angola or MPLA [Jose Eduardo DOS SANTOS] (ruling party in power since 1975); Social Renewal Party or PRS [Eduardo KUANGANA] note: nine other parties participated in the legislative election in September 2008 but won no seats |
| Anguilla | Anguilla Progressive Party or APP [Brent DAVIS]; Anguilla Strategic Alternative or ANSA [Edison BAIRD]; Anguilla United Front or AUF [Osbourne FLEMING, Victor BANKS] (a coalition of the Anguilla Democratic Party or ADP and the Anguilla National Alliance or ANA); Anguilla United Movement or AUM [Hubert HUGHES] |
| Antarctica | void |
| Antigua and Barbuda | Antigua Labor Party or ALP [Lester Bryant BIRD]; Barbuda People's Movement or BPM [Thomas H. FRANK]; Barbuda People's Movement for Change [Arthur NIBBS]; Barbudans for a Better Barbuda [Ordrick SAMUEL]; United Progressive Party or UPP [Baldwin SPENCER] (a coalition of three parties - Antigua Caribbean Liberation Movement or ACLM, Progressive Labor Movement or PLM, United National Democratic Party or UNDP) |
| Arctic Ocean | void |
| Argentina | Civic and Social Accord or ACyS (a now-defunct center-left alliance that included the CC, UCR, and Socialist parties-created ahead of the 2009 legislative elections); Civic Coalition or CC (a broad coalition loosely affiliated with Elisa CARRIO); Dissident Peronists or PJ Disidente (a sector of the Justicialist Party opposed to the Kirchners); Front for Victory or FpV (a broad coalition, including elements of the UCR and numerous provincial parties) [Cristina FERNANDEZ DE KIRCHNER]; Justicialist Party or PJ [Daniel SCIOLI]; Radical Civic Union or UCR [Ernesto SANZ]; Republican Proposal or PRO [Mauricio MACRI] (including Federal Recreate Movement or RECREAR [Esteban BULLRICH]; Socialist Party or PS [Ruben GIUSTINIANI]; Union For All [Patricia BULLRICH] (associated with the Civic Coalition); numerous provincial parties |
| Armenia | Armenian National Congress or ANC (bloc of independent and opposition parties) [Levon TER-PETROSSIAN]; Armenian National Movement or ANM [Ararat ZURABIAN]; Armenian Revolutionary Federation ("Dashnak" Party) or ARF [Hrant MARKARIAN]; Heritage Party [Raffi HOVHANNISIAN]; People's Party of Armenia [Stepan DEMIRCHIAN]; Prosperous Armenia [Gagik TSARUKIAN]; Republican Party of Armenia or HHK [Serzh SARGSIAN]; Rule of Law Party (Orinats Yerkir) [Artur BAGHDASARIAN] |
| Aruba | Aliansa/Aruban Social Movement or MSA [Robert WEVER]; Aruban Liberal Organization or OLA [Glenbert CROES]; Aruban Patriotic Movement or MPA [Monica ARENDS-KOCK]; Aruban Patriotic Party or PPA [Benny NISBET]; Aruban People's Party or AVP [Mike EMAN]; People's Electoral Movement Party or MEP [Nelson O. ODUBER]; Real Democracy or PDR [Andin BIKKER]; RED [Rudy LAMPE]; Workers Political Platform or PTT [Gregorio WOLFF] |
| Ashmore and Cartier Islands | void |
| Atlantic Ocean | void |
| Australia | Australian Greens [Bob BROWN]; Australian Labor Party [Julia GILLARD]; Family First Party [Steve FIELDING]; Liberal Party [Tony ABBOTT]; The Nationals [Warren TRUSS] |