Last name Jeynes (Jeynes 
) , all around the world, is a rare cognomen. The last name Jeynes is characteristic of the United Kingdom, where it is a rare surname, Australia, and New Zealand. Not in comparison with a country's population, it is the most numerous in the United Kingdom, Australia, and the United States. Very seldom, Jeynes is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Jeynes | Canada, New Zealand, Australia, United States, United Kingdom |
| william jeynes (b. 1957) |
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| anne jeynes (died 1827) |
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| chris jeynes researcher |
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| caroline jeynes Peerage person ID=352686 |
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| j charles g jeynes researcher (ORCID 0000-0002-4354-3852) |
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