African Union

African Union
(in other official languages)
Arabicالاتحاد الأفريقي
SpanishUnión Africana
FrenchUnion africaine
PortugueseUnião Africana
SwahiliUmoja wa Afrika
Motto: "A United and Strong Africa"
Anthem: "Let Us All Unite and Celebrate Together"
  Member states
  Suspended states
Political centres
Largest urban agglomerations
Official languages
DemonymAfrican
TypeContinental union
Membership
Leaders
Évariste Ndayishimiye
Mahamoud Ali Youssouf
Fortune Z. Charumbira
LegislaturePan-African Parliament
Establishment
25 May 1963
3 June 1991
9 September 1999
• African Union founded
9 July 2002
9 July 2011
31 January 2017
1 January 2021
Area
• Total
29,922,059 km2 (11,552,972 sq mi)
Population
• 2025 estimate
1,549,867,579
• Density
51.8/km2 (134.2/sq mi)
GDP (PPP)2025 estimate
• Total
$10.830 trillion
• Per capita
$7,370
GDP (nominal)2025 estimate
• Total
$2.830 trillion
• Per capita
$1,930
HDI (2020)0.577
medium
Internet TLD.africa
Website
au.int

The African Union (AU) is a continental union of 55 member states located on the continent of Africa. The AU was announced in the Sirte Declaration in Sirte, Libya, on 9 September 1999, calling for the establishment of the African Union. The bloc was launched on 9 July 2002 in Durban, South Africa. The intention of the AU was to replace the Organisation of African Unity (OAU), established on 25 May 1963 in Addis Ababa by 32 signatory governments; the OAU was disbanded on 9 July 2002. The most important decisions of the AU are made by the Assembly of the African Union, a semi-annual meeting of the heads of state and government of its member states.

The AU's secretariat, the African Union Commission, is based in Addis Ababa. The largest city in the AU is Lagos, Nigeria, while the largest urban agglomeration is Cairo, in Egypt. The African Union has more than 1.5 billion people and an area of around 30 million km2 (12 million sq mi) and includes world landmarks such as the Sahara and the Nile. The primary working languages are Arabic, English, French, Portuguese, Spanish, and Swahili. Within the African Union, there are official bodies, such as the Peace and Security Council and the Pan-African Parliament.

At the 2023 G20 (Group of 20) meeting held in New Delhi, India, the African Union was admitted as the twenty-first member of the G20.