The name Golfe du Morbihan was confirmed by the French toponymy commission for the Southern and Antarctic Lands, thus respecting the hierarchy of the topographic terms, since the Golfe du Morbihan includes several smaller bays such as the Baie des Aurores Australes, where Port-aux-Français is located. However the name Baie du Morbihan appears on various charts and is often used indifferently even in official writings.
The name Golfe du Morbihan was validated by the French toponymy commission for the Southern and Antarctic Lands, maintaining the hierarchical order of topographic terms. This is because the Golfe du Morbihan comprises smaller bays such as Baie des Aurores Australes, where Port-aux-Français is located. Nonetheless, the name Baie du Morbihan appears on various charts and is often used synonymously even in official writings.