All around the world, Guillaud (Guillaud 
, 吉约 
) is a very rare principally male, but scarcely female first name. The given name Guillaud is characteristic of Eastern Asia, particularly China, where it is an extremely rare boy's name. Predominantly, Guillaud is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Guillaud | Portugal, Singapore, Switzerland, United States, France |
| 吉约 | China |
| lauric guillaud French writer, FR (b. 1949) |
|