Surname Treat (Treter 
, Treat 
, พิรักษา 
) , worldwide, is quite a common last name. The cognomen Treat is habitual in Thailand, where it is quite a rare surname, the United States, and Poland, where it is a rare surname. Not in comparison with a country's population, it is the most numerous in the United States, Thailand, and Brazil. Much less frequently, Treat is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Treter | United States, Poland, Germany, Canada, Brazil |
| Treat | United States, Indonesia, Germany, Canada, Myanmar |
| พิรักษา, พารักษา | Thailand |
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robert treat English soldier, governor of the Connecticut Colony, GB (b. 1622) |
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| richard treat American city founder (1584-1669), US (b. 1584) |
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| joseph treat 17 Sep 1662 Milford, CT - 9 Aug 1721 (b. 1662) |
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| sarah treat 8 Jun 1664 Wethersfield, Connecticut - 26 Jan 1711/1712 Wethersfield, Connecticut (b. 1664) |
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| mary treat 8 Oct 1666 - 1 Jan 1748 (b. 1666) |
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| thomas treat 12 Dec 1668 Wethersfield, Connecticut - 17 Jan 1712/1713 Wethersfield, Connecticut (b. 1668) |
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| jane treat (6 Dec 1675 - certain 1 Sep 1729) (b. 1675) |
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| rev. charles treat 28 Feb 1695/1696 Glastonbury, Connecticut - Bef 1757 (b. 1695) |
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| edmund treat 20 Oct 1710 Milford, CT - 22 Sep 1801 Milford, CT (b. 1710) |
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| abigail treat 27 Nov 1739 Glastonbury, Connecticut - Aft 15 Feb 1806 Portland, Connecticut (b. 1739) |
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| sarah treat 1744 - 1813 (b. 1744) |
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selah burr treat Congregational minister 1804-1877 (b. 1804) |
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samuel hubbel treat, jr. United States federal judge 1811-1887, US (b. 1811) |
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samuel treat United States federal judge 1815-1902, US (b. 1815) |
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| joseph treat born 1775; died 1853, US (b. 1775) |
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