Family name Hardwicke (Hardwicke 
) , in the entire world, is quite a rare surname. The surname Hardwicke is habitual in Isle of Man, where it is quite a rare surname, Australia, where it is a rare surname, and the United Kingdom. Measured by absolute frequency, it most frequently occurs in the United Kingdom, the United States, and Australia.
| VARIANT | COUNTRY |
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| Hardwicke | United Kingdom, Canada, Australia, New Zealand, United States |
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thomas hardwicke British General and naturalist (1755-1835), GB (b. 1755) |
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charles hardwicke British explorer, AU (b. 1788) |
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| charles philip york of hardwicke (b. 1799) |
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| hardwicke cowie (1810-1811) (b. 1810) |
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| robert hardwicke British publisher and surgeon (1822–1875) (b. 1822) |
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cedric hardwicke English actor (1893-1964), GB (b. 1893) |
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| hardwicke spooner (1851-1933), GB (b. 1851) |
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edward hardwicke English actor (1932–2011), GB (b. 1932) |
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| hardwicke langdon yorke (1891-1913) (b. 1891) |
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catherine hardwicke American film director, screenwriter and architect, US (b. 1955) |
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| hardwicke knight New Zealand photographer and writer, NZ (b. 1911) |
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| hardwicke holderness lawyer and liberal politician in Southern Rhodesia (b. 1915) |
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| mark hardwicke English cricketer (1936-1988), GB (b. 1936) |
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| irene hardwicke olivieri American painter, US (b. 1959) |
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| caroline hardwicke (born 1977) (b. 1977) |
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