In all the world, Mériadec (Mériadec 
) is an extremely rare unknown gender given name. Much less frequently, Mériadec is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Mériadec | France |
|
mériadec de vannes Welsh-Breton Medieval bishop and saint, FR (b. 628) |
|
| mériadec laënnec French politician, FR (b. 1797) |
|
|
| mériadec rivière FR (b. 1949) |
|
|
| mériadec le mouillour |
|