The Col du Louschbach () is a secondary mountain pass in the Vosges Massif. It is a crossing point on the Route des Crêtes (D 148).
Louschbach is a dialectal toponym of Germanic origin derived from the Lorraine vernacular. Its oldest recorded written form is Luxpach (1580). It is composed of lux, meaning âÂÂlynxâ in Lorraine, and pach, meaning âÂÂstreamâÂÂ, that is, âÂÂthe lynxâÂÂs streamâÂÂ.
Located at an elevation of 978 m, the pass links Le Valtin in the Vosges to Le Bonhomme in the Haut-Rhin. It links the upper Lorraine valley of the Meurthe, from the Rudlin near Le Valtin, with the upper Alsatian valley of the Weiss â more precisely one of its tributaries, the , which flows through the commune of Le Bonhomme. It intersects the Route des Crêtes between the Col du Bonhomme and the Col du Calvaire.
It was the scene of fighting during the Second World War.