Family name Cousins (Cousins 
, カズンズ 
, Казинс) , around the world, is a common last name. The last name Cousins is habitual in Jamaica, where it is quite a common surname, Jersey, and Isle of Man (explore the name in all countries). Measured by absolute frequency, it is commonest in the United States, the United Kingdom, and Australia.
| VARIANT | COUNTRY |
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| Cousins | United Kingdom, Jamaica, Australia, United States, Canada |
| カズンズ | Japan |
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samuel cousins British engraver, GB (b. 1801) |
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| b. d. cousins 19th century publisher and printer (b. 1795) |
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robert g. cousins American politician, US (b. 1859) |
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| henry cousins engraver, GB (b. 1809) |
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| mary adams cousins IN (b. 1812) |
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james cousins Irish writer, poet and playwright, IE (b. 1873) |
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| henry cousins 19th century American politician, US (b. 1827) |
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margaret cousins Irish suffragist and feminist, IE (b. 1878) |
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| thomas selby cousins Artist, illustrator, cartoonist (b. 1840) |
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| james cousins American politician, US (b. 1849) |
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| frank cousins American photographer, US (b. 1851) |
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| alfred ernest cousins Engraver, stamp designer (1852-1935), NZ (b. 1852) |
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ralph w. cousins United States admiral (1915-2009), US (b. 1915) |
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norman cousins American journalist, US (b. 1915) |
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| marshall cousins American politician, US (b. 1869) |
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