Family name Crowcroft (Crowcroft 
) , in the entire world, is a rare last name. The cognomen Crowcroft is characteristic of Northern Europe, particularly Jersey, where it is quite a common surname, Isle of Man, where it is quite a rare surname, and the United Kingdom, where it is a rare surname. Measured by absolute frequency, the name is most common in the United Kingdom, the United States, and Australia. Very seldom, Crowcroft is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Crowcroft | Germany, Jersey, United Kingdom, Australia, United States |
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jon crowcroft British computer scientist, GB (b. 1957) |
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| peter crowcroft UK actor and author (1925-1982), in the US from 1963, reportedly very prolific under a number of unrevealed pseudonyms, GB (b. 1923) |
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alan simon crowcroft Jersey politician |
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| peter crowcroft (b. 1922) |
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| gillian mary crowcroft New Zealand botanist and botanical collector (1965— ), NZ (b. 1965) |
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| harry gordon crowcroft Ph.D. University of Maryland College Park 1973 |
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| natasha sarah crowcroft public health medical practitioner |
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