Family name Blanvalet (Blanvalet 
) , all over the world, is a very rare last name. The cognomen Blanvalet is characteristic of Western Europe, particularly Belgium, where it is a rare surname, and France, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Blanvalet | Belgium, France |
| henri blanvalet Swiss writer and poet, CH (b. 1811) |
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| georges blanvalet (b. 1900) |
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| lothar blanvalet German publisher (1910-1979), DE (b. 1910) |
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