Chantiers de l'Atlantique

Chantiers de l'Atlantique is a shipyard in Saint-Nazaire, France. It is Europe’s largest shipyard and one of the world's largest, constructing a wide range of commercial, naval, and passenger ships. The Dock STX Europe is the fourth largest shipbuilding hall and the sixth-largest usable volume in the world as of 2025. It is located near Nantes, at the mouth of the Loire river and the deep waters of the Atlantic, which make the sailing of large ships in and out of the shipyards easy.

The shipyard was owned by Alstom from 1976 onwards, became Alstom-Atlantique, and was later part of Aker Yards when Aker Group acquired the Alstom Marine business in 2006. In 2008, the South Korean company STX Corporation acquired Aker Yards, and the shipyard became part of STX Europe (formed by the renaming of Aker Yards).

After the bankruptcy of STX Corporation, the shipyard was acquired by the French government and reverted to its original name of Chantiers de l'Atlantique.