Cognomen Leith-Ross (Leith-Ross 
) , around the globe, is an extremely rare surname. The last name Leith-Ross is characteristic of Northern America, particularly the United States, where it is an extremely rare surname. Parts of the name also exists independently as a last name Leith, and a last name Ross.
| VARIANT | COUNTRY |
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| Leith-Ross | United States |
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harry leith-ross American painter (1886-1973), US (b. 1886) |
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| frederick william arbuthnot leith-ross (1847-1919) (b. 1847) |
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| sylvia leith-ross English anthropologist and writer (1884-1980), GB (b. 1884) |
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| frederick leith-ross British economist (b. 1887) |
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| hugh frederick leith-ross (1912-2012) (b. 1912) |
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| sina margaret leith-ross (1915-2016) (b. 1915) |
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| prudence leith-ross (1922-2016) (b. 1922) |
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| fiona leith-ross (1931-2012) (b. 1931) |
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| john leith-ross Peerage person ID=678837 |
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| carol leith-ross Peerage person ID=713021 |
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| felicity leith-ross Peerage person ID=713022 |
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