The toponym
Courmayeur has been mentioned as
Curia majori (1233–1381),
Corte Maggiore (1620),
Cormoyeu (1648),
Cormaior (1680),
Cormaior (Vissher, 1695),
Cormaggior (L'Isle, 1707),
Cormaior (Stagnoni, 1772) and
Cormaieur (Martinel, 1799). The present toponym was first confirmed by Édouard Aubert (''La Vallée d'Aoste
, 1860), Joseph-Marie Henry (Histoire populaire de la Vallée d'Aoste
, 1929) and Amé Gorret (Guide de la Vallée d'Aoste'', 1877). It became a popular tourist destination when alpinism arose, thanks to its proximity to Mont Blanc. Under the
Fascist regime and its "Italianist" rule, the town was briefly renamed
Cormaiore. Courmayeur was reestablished in 1948 alongside all other French toponyms in the Aosta Valley. The
Mont Blanc Tunnel, connecting Courmayeur with
Chamonix, opened in 1965, and provides an important road link between Italy and France. Courmayeur serves as one of the entry/exit points of the connecting tunnel and the tunnel forms part of the access between Italy and France, passing underneath Mont Blanc. In 2013, in accordance with regional law 61 (''Dénomination officielle des communes de la Vallée d'Aoste et protection de la toponymie locale
), a referendum was carried out to change the official name to Courmayeur-Mont-Blanc'', but there was insufficient support. == Geography ==