Last name Jeffreys (Jeffreys 
, ג'פרי 
, เจฟฟรีย์ 
) , across the world, is quite a common cognomen. The last name Jeffreys is characteristic of the United Kingdom, where it is quite a rare surname, Australia, and New Zealand. Measured by absolute frequency, it most frequently occurs in the United States, the United Kingdom, and Australia. Very seldom, Jeffreys is the forename as well as the last name.
| joyce jeffreys Jefferies, Joyce (c.1570–1650), moneylender and diarist (b. 1575) |
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sir thomas jeffreys Peerage person ID=487101, ES (b. 1630) |
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george jeffreys, 1st baron jeffreys of wem Welsh judge (1645–1689), aka the Hanging Judge, GB (b. 1645) |
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| john jeffreys (1608-1691) (b. 1608) |
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| george jeffreys English composer (b. 1610) |
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| john jeffreys English merchant (c. 1614–1688) (b. 1614) |
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| christopher jeffreys English musician (b. 1642) |
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rachel jeffreys Peerage person ID=89729 (b. 1694) |
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| james jeffreys (1649-1689) (b. 1649) |
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| jeffrey jeffreys Jeffreys, Sir Jeffrey (c.1652–1709), politician and merchant (b. 1652) |
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| edward jeffreys 1655 - 1702 (b. 1655) |
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| john jeffreys English politician (b. 1659) |
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| edward jeffreys British politician (b. 1669) |
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| john jeffreys English peer (b. 1673) |
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| george jeffreys English poet and translator (b. 1678) |
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