Throughout the world, Grandjean (Grandjean 
, Гранжан 
) is a very rare gender-neutral given name. The first name Grandjean is characteristic of Western Europe, particularly France, where it is a very rare gender-neutral name. Much more frequently, Grandjean is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Grandjean | Belgium, Switzerland, France, United States, Germany |
| Гранжан | Ukraine |
Grandjean is also a name for the fictitious and mythical characters: .
| balthazard grandjean French politician (1760-1824), FR (b. 1760) |
|
|
| vincens grandjean Danish equestrian, DK (b. 1898) |
|
|
| lee grandjean British sculptor and painter, GB (b. 1949) |
|
|
| lee grandjean GB (b. 1967) |
|