An Integrated, Prosperous and Peaceful Africa.

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Member States

The AU is made up of 55 Member States which represent all the countries on the African continent. AU Member States are divided into five geographic regions. which were defined by the OAU in 1976 (CM/Res.464QCXVI).

The following list shows all members states grouped by region, in alphabetical order, and their date of joining the AU or its predecessor the OAU.

Central Africa

Member State  Abbreviation Date of joining
the OAU or AU
Republic of Burundi  Burundi 25 May 1963
Republic of Cameroon  Cameroon 25 May 1963
Central African Republic  Central African Republic 25 May 1963 
Republic of Chad  Chad 25 May 1963
Republic of the Congo  Congo Republic 25 May 1963
Democratic Republic of Congo  DR Congo 25 May 1963
Republic of Equatorial Guinea  Equatorial Guinea 12 October 1968
Gabonese Republic  Gabon 25 May 1963
Democratic Republic of São Tomé and Príncipe   São Tomé and Príncipe 18 July 1975

Eastern Africa

Member State  Abbreviation  Date of joining
the OAU or AU
Union of the Comoros   Comoros 18 July 1975
Republic of Djibouti   Djibouti 27 June 1977
State of Eritrea   Eritrea 24 May 1993
Federal Democratic Republic of Ethiopia  Ethiopia 25 May 1963
Republic of Kenya  Kenya 25 May 1963
Republic of Madagascar  Madagascar 25 May 1963
Republic of Mauritius   Mauritius August 1968
Republic of Rwanda  Rwanda 25 May 1963
Republic of Seychelles   Seychelles 29 June 1976
Federal Republic of Somalia  Somalia 25 May 1963
Republic of South Sudan  South Sudan 27 July 2011
Republic of the Sudan  Sudan 25 May 1963
United Republic of Tanzania  Tanzania 25 May 1963
Republic of Uganda  Uganda 25 May 1963

Northern Africa

Member State  Abbreviation Date of joining
the OAU or AU
People’s Democratic Republic of Algeria Algeria 25 May 1963
Arab Republic of Egypt Egypt 25 May 1963
Libya Libya 25 May 1963
Islamic Republic of Mauritania Mauritania 25 May 1963
Kingdom of Morocco Morocco 1963/31 January 2017
Sahrawi Arab Democratic Republic Sahrawi Republic 22 February 1982
Republic of Tunisia Tunisia 25 May 1963

Southern Africa

Member State  Abbreviation Date of joining
the OAU or AU
 Republic of Angola   Angola 11 February 1975
 Republic of Botswana   Botswana 31 October 1966
 Kingdom of Eswatini   Eswatini 24 September 1968
 Kingdom of Lesotho   Lesotho 31 October 1966
 Republic of Malawi   Malawi 13 July 1964
 Republic of Mozambique   Mozambique 18 July 1975
 Republic of Namibia   Namibia June 1990
 Republic of South Africa  South Africa 6 June 1994
 Republic of Zambia   Zambia 16 December 1964
 Republic of Zimbabwe   Zimbabwe 18 June 1980

Western Africa

Member State  Abbreviation  Date of joining
the OAU or AU
 Republic of Benin   Benin 25 May 1963
 Burkina Faso  Burkina Faso 25 May 1963
 Republic of Cabo Verde   Cabo Verde 18 July 1975
 Republic of Côte d’Ivoire   Côte d’Ivoire 25 May 1963
 Republic of the Gambia   Gambia  9 March 1965
 Republic of Ghana   Ghana  25 May 1963
 Republic of Guinea  Guinea  25 May 1963
 Republic of Guinea-Bissau  Guinea-Bissau  19 November 1973
 Republic of Liberia  Liberia  25 May 1963
 Republic of Mali  Mali  25 May 1963
 Republic of Niger  Niger  25 May 1963
 Federal Republic of Nigeria  Nigeria  25 May 1963
 Republic of Senegal  Senegal  25 May 1963
 Republic of Sierra Leone  Sierra Leone  25 May 1963
 Togolese Republic  Togo  25 May 1963