Cognomen Thesiger (Thesiger 
) , around the world, is a very rare surname. The cognomen Thesiger is habitual in the United Kingdom, where it is a very rare surname, France, where it is an extremely rare surname, and Canada. Not in comparison with a country's population, the name is most common in the United Kingdom, the United States, and France. Much less frequently, Thesiger is the forename as well as the last name.
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| Thesiger | Turkey, United Kingdom, Mexico, United States, France |
| john andrew thesiger (born 1722) (b. 1722) |
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frederic thesiger, 1. baron chelmsford British politician (1794-1878), GB (b. 1794) |
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| frederick thesiger naval officer in the British and Russian services (died 1805) (b. 1758) |
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| charles thesiger (died 1831) (b. 1762) |
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| augustus thesiger (1767-1837) (b. 1767) |
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frederic augustus thesiger, 2. baron chelmsford British Army general (1827-1905), GB (b. 1827) |
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| charles theophilus thesiger (1786-1787) (b. 1786) |
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frederic thesiger, 1. viscount chelmsford Governor of New South Wales; Governor of Queensland; Viceroy of India (1868–1933), GB (b. 1868) |
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george thesiger British First World War general (1868-1915) (b. 1868) |
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wilfred gilbert thesiger British diplomat (1871-1920) (b. 1871) |
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ernest thesiger actor (1879-1961), GB (b. 1879) |
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| charles thesiger (1831-1903) (b. 1831) |
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| alfred thesiger British judge (1838-1880) (b. 1838) |
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wilfred thesiger British explorer (1910-2003), GB (b. 1910) |
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| frances thesiger, viscountess chelmsford British noble (1869-1957) (b. 1869) |
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