Family name Laroch (Laroch 
) , in the world, is a very rare last name. The family name Laroch is characteristic of France, where it is a very rare surname, Mexico, where it is an extremely rare surname, and Canada. Measured by absolute frequency, it most frequently occurs in France, Mexico, and the United States. Much less frequently, Laroch is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Laroch | Mexico, Canada, France, United States |