Worldwide, Guinness (Guinness 
, 金氏 
, גינס 
) is a very rare epicene forename. The first name Guinness is habitual in Western Asia, particularly Israel, where it is a rare feminine name. More frequently, Guinness is the last name as well as the forename.
| VARIANT | COUNTRY |
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| Guinness | Indonesia, United Kingdom, Australia, Ireland, United States |
| 金氏 | China |
| גינס | Israel |
Magennis, Maginnis, Maguiness, Mcguinness, and جينيس
Guinness is also a name for the fictitious and mythical characters: .
| sir reginald robert bruce guinness (1842-1909) (b. 1842) |
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| lewis hart guinness (1867-1929) (b. 1867) |
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| sir algernon guinness, 3rd baronet (1883-1954) (b. 1883) |
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| sir arthur guinness (1895-1951), Merchant banker (b. 1895) |
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| humphrey patrick guinness polo player, GB (b. 1902) |
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| tanis guinness British socialite (b. 1908) |
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| murtogh david guinness (1913-2002) (b. 1913) |
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| iveagh perry guinness (born 1927) (b. 1927) |
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| sir kenelm ernest lee guinness, 4th bt. (1928-2011) (b. 1928) |
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| finn benjamin guinness (born 1945), GB (b. 1945) |
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| miranda guinness (born 1955), IE (b. 1955) |
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| sir kenelm guinness, 5th baronet British pilot (b. 1962) |
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| sheridan william guinness (born 1972), GB (b. 1972) |
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| unknown daughter guinness Peerage person ID=597531 |
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| unknown daughter guinness Peerage person ID=597641 |
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