Chief Olusegun Mathew Okikiola Aremu Obasanjo, GCFR, Ph.D. (//; Yoruba: Olúṣẹ́gun Ọbásanjọ́ born 5 May 1937) is a Nigerian politicians and general. He was President of Nigeria from 1999 to 2007. He was a military ruler from 13 February 1976 to 1 October 1979, and a democratically elected president from 29 May 1999 to 29 May 2007.
|12th President of Nigeria|
29 May 1999 – 29 May 2007
|Vice President||Atiku Abubakar|
|Preceded by||Abdulsalam Abubakar|
|Succeeded by||Umaru Musa Yar'Adua|
|Federal of Petroleum Resources|
|5th Head of State of Nigeria|
13 February 1976 – 30 September 1979
|Preceded by||Gen. Murtala Mohammed|
|Succeeded by||Shehu Shagari as 1st elected President of Nigeria|
|3rd Chief of Staff, Supreme Headquarters|
29 July 1975 – 13 February 1976
|Preceded by||Vice-Adm. J.E.A Wey|
|Succeeded by||Maj-Gen. S.M. Yar'Adua|
|Federal Commissioner for Works and Housing|
|Born||5 May 1937|
Abeokuta, Western Region, British Nigeria
(now Abeokuta, Ogun, Nigeria)
|Political party||PDP (1999 – Feb. 2015)|
|Alma mater||Mons Officer Cadet School|
|Years of service||1958–1979|
|Battles/wars||Nigerian Civil War (6 July 1967 – 15 January 1970) Congo Crisis (5 July 1960 – 25 November 1965)|
From July 2004 to January 2006, Obasanjo also was Chairperson of the African Union.
In August 2021, the African Union appointed Olusegun Obasanjo as High Representative for Peace in the Horn of Africa.
- Ebuzor, Chika. "'Nigeria is sitting on a keg of gun powder,' OBJ says". Pulse Nigeria. Retrieved 13 December 2015.
- "Statement by Obasanjo to the United Nations" (PDF). Retrieved 2011-04-23.
- With tone marking, his name is spelled Olúṣẹ́gun Ọbásanjọ́.