Family name Decuir (Decuir 
) , in the entire world, is quite a rare last name. The family name Decuir is characteristic of the United States, where it is a rare surname, Belgium, and Mexico. In absolute terms, it most frequently occurs in the United States, Mexico, and France.
| VARIANT | COUNTRY |
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| Decuir | Mexico, France, Canada, United States, Belgium |
| lionel decuir American baseball player, US (b. 1914) |
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| john decuir American art director (1918-1991), US (b. 1918) |
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| john f. decuir, jr. American production designer, US (b. 1941) |
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| joseph c. decuir American fellow of IEEE, US (b. 1950) |
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| greg decuir (b. 1974) |
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