Family name Swiny (Swiny 
) , in the world, is a very rare cognomen. The last name Swiny is characteristic of Egypt, where it is a very rare surname, France, and Venezuela, where it is an extremely rare surname. In absolute terms, it is the most numerous in Egypt, France, and the United States. Very seldom, Swiny is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Swiny | Philippines, India, France, Egypt, United States |
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owen swiny Irish theatre impresario and art dealer (b. 1676) |
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| margaret swiny Peerage person ID=545997 |
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| rena swiny (died 1965) |
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| william swiny Peerage person ID=84523 |
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| stuart swiny |
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