Yoweri Museveni, President of Uganda, has been in power since 1986. He is 74 years old.
Beji Caid Essebsi, 91 – Tunisian President Beji Caid Essebsi is 91. His presidency follows a term as Prime Minister, a role he took following the revolution in the country which sparked the Arab Uprising across the Middle East.
Paul Biya, 85 – Eighty-five year old Paul Biya has been Cameroon's president since 1982. He is seen as a particularly entrenched African leader, having survived a number of coup attempts.
Abdelaziz Bouteflika, 81 – Algeria's President Abdelaziz Bouteflika is 81. Having been in his position since 1999, he is currently in his fourth term. He also served a long tenure as Minister of Foreign Affairs from 1963 to 1979.
Alpha Conde, 80 – Alpha Conde is 80 years old and has been President of Guinea since December 2010, after many years spent in opposition. He survived an assassination attempt in 2011.
Hage Geingob, 77 – Hage Geingob, 77, is the third president of Namibia. After serving as Prime Minister of the country for 12 years he became President in March 2015.
Teodoro Obiang Nguema Mbasogo, 76 – President Teodoro Obiang Nguema Mbasogo has ruled Equatorial Guinea since 1979. He is 76 years old.