Surname Deary (Deary 
, ديارى ) , worldwide, is quite a rare cognomen. The cognomen Deary is habitual in Iraq, where it is a rare surname, the United Kingdom, and Israel. In absolute terms, it is the most numerous in the United States, the United Kingdom, and Iraq. Also, Deary is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Deary | Indonesia, United Kingdom, South Africa, United States, Iraq |
| ديارى | Iraq |
| jacob deary (b. 1846) |
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|
ian deary British psychologist, GB (b. 1954) |
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peter deary British singer-songwriter, GB (b. 1960) |
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| terry deary writer, GB (b. 1946) |
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| john deary English footballer (born 1962), GB (b. 1962) |
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| michael e. deary researcher |
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| alison l deary researcher |
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| alison deary researcher |
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| vincent deary researcher (ORCID 0000-0001-6115-9259) |
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| william deary researcher (ORCID 0000-0001-8061-9759) |
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