Ateliers et Chantiers de la Loire (ACL) was a French shipbuilding company of the late 19th and early 20th century. The name translates roughly to English as "Workshops and Shipyard of the Loire".

Masséna was a pre-dreadnought battleship of the French Navy, built in the 1890s. She was a member of a group of five broadly similar battleships, along with Charles Martel, Jauréguiberry, Bouvet, and Carnot, that were ordered in response to the British Royal Sovereign class. She was named in honour of Marshal of France André Masséna. Masséna significantly exceeded her design weight and suffered from serious stability problems that inhibited accurate firing of her guns; as a result, she was considered to be an unsuccessful design.