Youngest World Leaders in History — Yourlist

Youngest World Leaders in History

a Yourlist ranking · the crowd decides the order

From infant emperors to fresh-faced prime ministers, these are the leaders who took the reins before most people finish college—vote for who truly deserves the 'youngest ever' crown.

What counts: Best = youngest verified age at which the person assumed supreme national leadership (monarch, head of state, or head of government). Ages, especially for ancient or infant monarchs, are approximate due to incomplete historical records.

Ivan VI of Russia
Proclaimed Emperor of Russia at just two months old, arguably the youngest monarch ever to hold supreme power.
Age at Accession: 0.17 yearsCountry: RussiaYear: 1740
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Mary, Queen of Scots
Became Queen of Scotland six days after birth, inheriting the throne before she could even open her eyes.
Age at Accession: 0.02 yearsCountry: ScotlandYear: 1542
added by IJRMary, Queen of Scots
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King Oyo of Tooro
Crowned King of the Tooro Kingdom in Uganda at just three years old after his father's sudden death.
Age at Accession: 3 yearsCountry: UgandaYear: 1995
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King Faisal II of Iraq
Ascended to the Iraqi throne at age three, ruling under regents until his assassination in 1958.
Age at Accession: 3 yearsCountry: IraqYear: 1939
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Louis XIV of France
Became King of France at four years old and went on to rule for 72 years, the longest reign in European history.
Age at Accession: 4 yearsCountry: FranceYear: 1643
added by IJRLouis XIV of France
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King Michael I of Romania
First crowned king at five, dethroned, then restored to the throne again at nineteen—Europe's youngest two-time monarch.
Age at Accession: 5 yearsCountry: RomaniaYear: 1927
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Queen Christina of Sweden
Inherited the Swedish crown at six after her father's death in battle, later abdicating to convert to Catholicism.
Age at Accession: 6 yearsCountry: SwedenYear: 1632
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King Simeon II of Bulgaria
Became Tsar of Bulgaria at six, later returning decades later as an elected prime minister of the same country.
Age at Accession: 6 yearsCountry: BulgariaYear: 1943
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Tutankhamun
Egypt's boy-pharaoh took the throne around age nine and remains history's most famous young ruler thanks to his tomb.
Age at Accession: 9 yearsCountry: EgyptYear: c. 1332 BC
added by IJRTutankhamun
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Queen Victoria
Became Queen of the United Kingdom at eighteen, launching a 63-year reign that defined an era.
Age at Accession: 18 yearsCountry: United KingdomYear: 1837
added by IJRin 5 rankings Queen Victoria
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King Bhumibol Adulyadej
Crowned King of Thailand at eighteen, he became the world's longest-reigning monarch of the 20th century.
Age at Accession: 18 yearsCountry: ThailandYear: 1946
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Alexander the Great
Took the Macedonian throne at twenty and conquered most of the known world within a decade.
Age at Accession: 20 yearsCountry: MacedonYear: 336 BC
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William Pitt the Younger
Became Britain's Prime Minister at twenty-four, still the youngest person ever to hold the office.
Age at Accession: 24 yearsCountry: United KingdomYear: 1783
added by IJRWilliam Pitt the Younger
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Queen Elizabeth II
Ascended to the British throne at twenty-five, becoming one of history's most recognized long-serving monarchs.
Age at Accession: 25 yearsCountry: United KingdomYear: 1952
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Kim Jong-un
Took control of North Korea at twenty-seven, becoming one of the youngest heads of state in the modern era.
Age at Accession: 27 yearsCountry: North KoreaYear: 2011
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Sebastian Kurz
Became Austria's Chancellor at thirty-one, the youngest government leader in modern European history at the time.
Age at Accession: 31 yearsCountry: AustriaYear: 2017
added by IJRSebastian Kurz
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Sanna Marin
Took office as Finland's Prime Minister at thirty-four, becoming the world's youngest sitting head of government at the time.
Age at Accession: 34 yearsCountry: FinlandYear: 2019
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Jacinda Ardern
Became New Zealand's Prime Minister at thirty-seven, one of the youngest female heads of government in modern history.
Age at Accession: 37 yearsCountry: New ZealandYear: 2017
added by IJRJacinda Ardern
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