Surname Blackney (Blackney 
) , around the globe, is a rare last name. The cognomen Blackney is characteristic of Australia, where it is a rare surname, New Zealand, and the United States, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in the United States, Australia, and the United Kingdom.
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| Blackney | Canada, United Kingdom, Australia, United States, New Zealand |
| walter blackney United Kingdom Member of Parliament (b. 1775) |
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william w. blackney American politician (1876-1963), US (b. 1876) |
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| ron blackney Australian steeplechase runner (1933-2008), AU (b. 1933) |
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| gary blackney American football player and coach, US (b. 1944) |
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| walter blackney Peerage person ID=150892 |
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| michael blackney researcher |
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| mary ann blackney Peerage person ID=150899 |
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| walter blackney Peerage person ID=150900 |
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| james blackney Peerage person ID=151196 |
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| jane blackney Peerage person ID=151195 |
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| gary blackney head coach |
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| sarah blackney Peerage person ID=479293 |
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| roger blackney Peerage person ID=479294 |
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