The Top 5 Longest Serving World Leaders

  Name Country Years Served
1 Fidel Castro Cuba 49 years (1959 to 2008)
2 El Hadj Omar Bongo Ondimba Gabon 39 years (1967 to present)
3 Muammar Abu Minyar al-Qaddafi Libya 37 years (1969 to present)
4 Ali Abdullah Saleh Yemen 28 years (1978 to present)
5 Maumoon Abdul Gayoom Maldives 28 years (1978 to present)
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Sources:  Various.

List Notes: 
Longest Serving World Leaders

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