Cognomen Chastang (Chastang 
) , globally, is quite a rare family name. The cognomen Chastang is characteristic of France, where it is quite a rare surname, the United States, where it is a rare surname, and Spain. Much less frequently, Chastang is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Chastang | Spain, Switzerland, United States, Canada, France |
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pedro chastang Basque trade unionist and politician (1876-1946), ES (b. 1876) |
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| félix-marie chastang FR (b. 1890) |
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pierre chastang French historian, FR (b. 1969) |
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| marcel chastang FR (b. 1936) |
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| juan chastang American politician, US (b. 1960) |
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| miguel ángel chastang ES (b. 1952) |
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| marcel chastang FR (b. 1965) |
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| jean-françois chastang researcher |
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| andré chastang |
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