The Paris Convention provides protection of GIs against any unauthorized use that is misleading
The Lisbon Agreement for the Protection of Appellations of Origin and their International Registration administered by World Intellectual Property Organization provides an international registration system for appellations of origin. A country that operates a national system for the protection of appellations of origin can apply for international registration of a given appellation of origin, which is then communicated to the other States party to the Agreement
The TRIPS Agreement also requires all Members of the World Trade Organization to protect GI, if their unauthorized use would be misleading or would constitute an act of unfair competition,