The Secretary General was head of the Secretariat of the Organisation of African Unity.[1]
| Portrait | Chairperson | Took office | Left office | Country | Region | ||
|---|---|---|---|---|---|---|---|
| 1 | 25 May 1963 | 21 July 1964 | East Africa | ||||
| 2 | 21 July 1964 | 15 June 1972 | West Africa | ||||
| 3 | 15 June 1972 | 16 June 1974 | Central Africa | ||||
| 4 | 16 June 1974 | 21 July 1978 | Central Africa | ||||
| 5 | 21 July 1978 | 12 June 1983 | West Africa | ||||
| 6 | 12 June 1983 | 20 July 1985 | West Africa | ||||
| 7 | 20 July 1985 | 19 September 1989 | West Africa | ||||
| 8 | 19 September 1989 | 17 September 2001 | East Africa | ||||
| 9 | 17 September 2001 | 19 July 2002 | West Africa |