Last name Dayet (Dayet 
) , in all the world, is a rare family name. The surname Dayet is habitual in France, where it is a rare surname, Ethiopia, where it is a very rare surname, and Australia. Measured by absolute frequency, it is commonest in France, Ethiopia, and Mexico. Very seldom, Dayet is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dayet | Ethiopia, Spain, Australia, Mexico, France |
| maurice dayet French diplomat, FR (b. 1889) |
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| serge dayet French politician, FR (b. 1959) |
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| joachim dayet French politician, FR (b. 1977) |
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| virginie dayet French politician, FR (b. 1983) |
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