List of youngest state leaders since 1900
Appearance
This is a list of state leaders aged 30 or younger when they assumed office (since 1900). It does not include leaders who did not assume power in their own right, or leaders who served under colonial rule.
Non-royal leaders
Monarchs
Name | Position | Born | Assumed office | Age | Notes |
---|---|---|---|---|---|
Fuad II | King of Egypt | 1952 | 1952 | 0 | |
Puyi | Emperor of China | 1906 | 1908 | 2 | |
Gyanendra | King of Nepal | 1947 | 1950 | 3 | |
Michael I of Romania | King of Romania | 1921 | 1927 | 5 | |
Simeon II | Tsar of Bulgaria | 1937 | 1943 | 6 | |
Duy Tân | Emperor of Vietnam | 1900 | 1907 | 7 | |
Ananda Mahidol | King of Thailand | 1925 | 1934 | 9 | Assumed power following a 10-year regency. |
Alfonso XIII | King of Spain | 1886 | 1902 | 16 | Assumed power following a 16-year regency. |
Ahmad Shah Qajar | Shah of Iran | 1898 | 1914 | 16 | Assumed power following a 5-year regency. |
Hussein | King of Jordan | 1935 | 1952 | 16 | |
Jigme Singye Wangchuck | King of Bhutan | 1955 | 1972 | 16 | |
Tribhuvan | King of Nepal | 1906 | 1923 | 17 | Ruled as King under colonial rule since 1918. |
Farouk I | King of Egypt | 1920 | 1937 | 17 | Assumed power following a 1-year regency. |
Marie-Adélaïde | Grand Duchess of Luxembourg | 1894 | 1912 | 17 | |
Peter II | King of Yugoslavia | 1923 | 1941 | 17 | Assumed power following a 6-year regency. |
Iyasu V | Emperor of Ethiopia | 1895 | 1913 | 18 | |
Faisal II | King of Iraq | 1935 | 1953 | 18 | Assumed power following a 14-year regency. |
Mswati III | King of Swaziland | 1968 | 1986 | 18 | Assumed power following a 3-year regency. |
Manuel II | King of Portugal | 1889 | 1908 | 18 | |
Mihai I | King of Romania | 1921 | 1940 | 18 | Was previously King from 1927 to 1930 under a regency. |
Bhumibol Adulyadej | King of Thailand | 1927 | 1946 | 18 | |
Ntare V | King of Burundi | 1947 | 1966 | 18 | |
Mohammad Zahir Shah | King of Afghanistan | 1914 | 1933 | 19 | |
Baudouin | King of Belgium | 1930 | 1951 | 20 | Acted as regent for his father since 1950. |
Mohammad Reza Pahlavi | Shah of Iran | 1919 | 1941 | 21 | |
Charlotte | Grand Duchess of Luxembourg | 1896 | 1919 | 22 | |
Alexander | King of Greece | 1893 | 1917 | 23 | |
Constantine II | King of Greece | 1940 | 1964 | 23 | |
Boris III | Tsar of Bulgaria | 1894 | 1918 | 24 | |
Jigme Dorji Wangchuck | King of Bhutan | 1928 | 1952 | 24 | |
Hirohito | Emperor of Japan | 1901 | 1926 | 25 | |
Rainier III | Prince of Monaco | 1923 | 1949 | 25 | |
Elizabeth II | Queen of the United Kingdom, Canada, Australia, New Zealand, South Africa, Ceylon | 1926 | 1952 | 25 | |
Jigme Khesar Namgyel Wangchuck | King of Bhutan | 1980 | 2006 | 26 | |
Amānullāh Khān | Emir of Afghanistan | 1892 | 1919 | 26 | |
Moshoeshoe II | King of Lesotho | 1938 | 1965 | 26 | Ruled as Paramount Chief under colonial rule since 1960. |
Birendra | King of Nepal | 1945 | 1972 | 26 | |
Carl XVI Gustaf | King of Sweden | 1946 | 1973 | 27 | |
Letsie III | King of Lesotho | 1963 | 1990 | 27 | |
Vajiravudh | King of Siam | 1881 | 1910 | 29 | |
Karl I | Emperor of Austria | 1887 | 1916 | 29 | |
Qaboos bin Said al Said | Sultan of Oman | 1940 | 1970 | 29 | |
Vittorio Emanuele III | King of Italy | 1869 | 1900 | 30 |