The origin of the name Larouche is Languedoc, France.

Larouche The surname derives from the French word "roche" which means "rock", probably the first members of the lineage lived in an area where there was a prominent rock.

Some variations of this surname are: Laroche, Laroche, Larauche, Lareauche, LaRouche, LaRouche, De Roche, La Roche, La Roche and others.