A geographical indication (GI) is a name or sign used on products which corresponds to a specific geographical location or origin (e.g., a town or region). The use of a geographical indication, as an indication of the product's source, is intended as a certification that the product possesses certain qualities, is made according to traditional methods, or enjoys a good reputation due to its geographical origin.

Article 22.1 of the TRIPS Agreement defines geographical indications as "...indications which identify a good as originating in the territory of a Member [of the World Trade Organization], or a region or locality in that territory, where a given quality, reputation or other characteristic of the good is essentially attributable to its geographical origin."

Appellation d'origine contrôlée ('Appellation of origin') is a sub-type of geographical indication where quality, method, and reputation of a product originate from a strictly defined area specified in its intellectual property right registration.

Governments have protected trade names and trademarks of food products identified with a particular region since at least the end of the 19th century, using laws against false trade descriptions or passing off, which generally protects against suggestions that a product has a certain protection benefits.

One of the first GI systems is the one used in France from the early part of the 20th century known as appellation d'origine contrôlée (AOC). Items that meet geographical origin and quality standards may be endorsed with a government-issued stamp which acts as official certification of the origins and standards of the product. Examples of products that have such "appellations of origin" include Gruyère cheese (from Switzerland) and many French wines.

Under "Champagnerparagraph [de]" of the 1919 Treaty of Versailles, Germany was forbidden from using allied geographical indications on products, which in particular affected the German "cognac" and "champagne" industries, as the French considered the terms misleading references to places in France. Since then, the terms "Weinbrand" and "Sekt" have been used instead.

Geographical indications have long been associated with the concept of terroir and with Europe as an entity, where there is a tradition of associating certain food products with particular regions. Under European Union Law, the protected designation of origin framework which came into effect in 1992 regulates the following systems of geographical indications: "Protected designation of origin" (PDO), "protected geographical indication" (PGI), and Traditional Specialities Guaranteed" (TSG).

Since 2006, the European Union has required provisions in geographical indications in free trade agreements.