Achaia Clauss is one of the oldest and most historically important wineries in Greece, founded in 1861 in Patras by Gustav Clauss. Located on hillside vineyards overlooking the Gulf of Patras, the estate benefits from a Mediterranean climate that allows balanced ripening while maintaining freshness in the wines.

The winery played a key role in the development of organized winemaking in Greece and was among the first to establish international exports. Its castle-like estate and historic underground cellars are central to its identity, providing natural conditions for aging wines.

Achaia Clauss is especially known for its iconic fortified wine Mavrodaphne, which has become a symbol of Greek wine heritage. Today, the winery combines tradition with modern production, maintaining its reputation as a reference point for Greek wine and a major destination for wine tourism.