In politics, age can be both a sign of wisdom and a warning of stagnation.
Across the globe, a surprising number of world leaders remain in office well into their 80s and even 90s, some clinging to power decades after their first inauguration. Although longevity in public service can reflect a leader’s popularity or political mastery, it can also be seen as greed.
Why will an elderly leader continue to hold office despite age-related concerns? Some govern with near-absolute control in nations with fragile institutions and limited political competition. Their advanced age often limits their ability to introduce new ideas, like their younger counterparts, and many do not engage younger advisers who could inject fresh perspectives into their administration.
As of mid-2025, the world’s oldest active leaders include monarchs, presidents, and authoritarian rulers. This article profiles the ten oldest leaders in the world today and explains how they’ve managed to stay in power for so long.
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10 Oldest World Leaders And Their Ages
1. Paul Biya (Cameroon) – Age 92
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Date of Birth: February 13, 1933
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In Office Since: 1982
Paul Biya is not only the oldest serving president in the world but also one of the longest-reigning. At 92, he has ruled Cameroon for over 43 years. Despite spending significant periods in Switzerland and making infrequent public appearances, he remains a dominant figure in Cameroonian politics.
His hold on power is largely due to constitutional changes that removed term limits, a heavily controlled electoral system, and a weakened opposition. Many Cameroonians, especially the youth, view him as out of touch, but without any clear successor or institutional reform, Biya is expected to run again in 2025.
2. Mahmoud Abbas (Palestine) – Age 89
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Date of Birth: November 15, 1935
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In Office Since: 2005
He is also known as Abu Mazen. Mahmoud Abbas has been President of the Palestinian Authority for nearly two decades, despite his term technically ending in 2009. Political fragmentation between Fatah and Hamas, combined with repeated election postponements, has allowed Abbas to remain in office.
At 89, questions about his legitimacy and succession dominate the political discourse. In early 2025, he appointed a deputy, a signal that a transition may be on the horizon. Still, many Palestinians criticise the democratic stagnation and call for leadership that better reflects a younger generation’s aspirations.
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3. Ali Khamenei (Iran) – Age 86
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Date of Birth: April 19, 1939
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In Office Since: 1989
As Iran’s Supreme Leader, Ayatollah Ali Khamenei holds the most powerful position in the country. At 86, he continues to wield significant influence over Iran’s military, judiciary, and parliament. His role is not elected by the public but determined by the Assembly of Experts, a clerical body largely loyal to him. Despite health speculations, Khamenei’s grip on power remains firm because he has groomed loyalists across state institutions.
4. King Salman (Saudi Arabia) – Age 89
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Date of Birth: December 31, 1935
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In Power Since: 2015
King Salman remains the ceremonial ruler of Saudi Arabia, but real power has shifted to his son and heir, Crown Prince Mohammed bin Salman (MBS). At 89, the king has significantly reduced public appearances due to health issues. Still, King Salman plays a symbolic role as the custodian of tradition and religious legitimacy in the kingdom.
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5. King Harald V (Norway) – Age 88
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Date of Birth: February 21, 1937
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In Power Since: 1991
King Harald is one of the world’s most respected constitutional monarchs. His role is ceremonial, but his popularity in Norway remains strong. At 88, the king has delegated many responsibilities to Crown Prince Haakon, particularly following recent health challenges, including hospitalisations for infections.
Unlike leaders who resist stepping down, Harald’s longevity is accepted within the framework of Norway’s stable constitutional monarchy, where succession planning is clear and democratic institutions are robust.
6. Teodoro Obiang Nguema Mbasogo (Equatorial Guinea) – Age 82
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Date of Birth: June 5, 1942
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In Power Since: 1979
Obiang is Africa’s longest-serving head of state, having taken power in a coup against his uncle over four decades ago. At 82, he shows no signs of stepping aside. His regime has been characterised by authoritarianism, corruption, and human rights abuses, fueled by the country’s oil wealth.
Obiang has survived multiple coup attempts and international criticism by consolidating power through patronage and family dominance. In 2023, he secured another seven-year term, a move widely condemned as undemocratic.
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7. Emmerson Mnangagwa (Zimbabwe) – Age 82
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Date of Birth: September 15, 1942
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In Power Since: 2017
