Surname Debeyer (Debeyer 
) , in the world, is a very rare family name. The cognomen Debeyer is characteristic of France, where it is a very rare surname, Canada, and New Zealand. Measured by absolute frequency, it is commonest in France, Canada, and Australia. Much less frequently, Debeyer is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Debeyer | Australia, Canada, France, New Zealand, United States |