The Russian president has been in power since 1999. The 71-year-old swapped presidential job with Prime Minister Dmitry Medvedev in 2008. The rules limiting consecutive presidential mandates were changed. He has been president since 2012 and can potentially remain so until 2036.
The 69-year-old Belarussian leader has been in power in Belarus for 29 years.
The 77-year-old Eritrean has been president since 1993; a total of 30 years in power.
The 71-year-old rose to power shortly after the collapse of Soviet Union in 1991. He has been in power for 31 years.
Ugandan President Yoweri Museveni, 79, was re-elected to a sixth consecutive term in 2021. He has been in power for 37 years.
Denis Sassou Nguesso, 80, has been president for 39 years in total. He was president of Congo from 1979 to 1992. He returned to power in 1997 and has been at helm ever since.
The world’s oldest elected leader, African nation Cameroon’s President Paul Biya, 90, is ruling the country since November 1982. That makes it 41 years in power and counting.