Cognomen Croÿ (クロイ 
, كروي 
, Croÿ 
) , worldwide, is a rare surname. The last name Croÿ is characteristic of Iraq, where it is a rare surname, Belarus, and Libya. Not in comparison with a country's population, it is commonest in Iraq, Iran, and Algeria. More frequently, Croÿ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| クロイ | Japan |
| كروي | Morocco, Iran, Iraq, Yemen, Algeria |
| Croÿ | Germany, France, Belgium |
| Крой | Ukraine, Belarus |
|
jean ii de croÿ Belgian noble (1395-1473), FR (b. 1395) |
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antoine i. de croÿ Belgian noble, BE (b. 1405) |
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| jean i de croÿ Founder of the House of Croÿ, FR (b. 1365) |
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philip i de croÿ Member of the House of Croÿ and Count of Porcéan (b. 1435) |
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philippe i. de croÿ, comte de chimay Belgian noble (1436-1482), BE (b. 1436) |
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guillaume ii. de croÿ politician (1458-1521), BE (b. 1458) |
|
| jacob van croÿ (b. 1436) |
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philippe ii de croÿ Belgian noble (1496-1549) (b. 1496) |
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guillaume iii de croÿ French priest, FR (b. 1498) |
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robert de croÿ bishop of Cambrai, FR (b. 1500) |
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| charles i. de croÿ Belgian noble (1455-1527), BE (b. 1455) |
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charles de croÿ Roman Catholic bishop (1505-1564), BE (b. 1506) |
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| henry de croÿ (b. 1456) |
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| antoine de croÿ CY (b. 1457) |
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philippe iii de croÿ Duke of Aarschot (1526-1595), FR (b. 1526) |
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