Aiguille du Tour, Alpine peak in Mont Blanc Massif, France and Switzerland.

Aiguille du Tour is a granite summit in the Mont Blanc Massif that rises to 3540 meters between two major glaciers. This peak sits directly on the French-Swiss border and offers views across both countries.

The south summit was first climbed on 17 August 1864 by Charles Gilbert Heathcote and Moritz Andermatten via the upper Tour col, now the normal route. The north summit followed in August 1875 by Georges and Edouard Beraneck with Émile Javelle, and in 1926 Marcel Dreyfus, A. and R. Duval, Pierre Henry and Marcel Ichac opened the south-west ridge of the Table de Roc.

The name appears in two forms: French sources call it aiguille du Tour, Swiss sources aiguilles du Tour, plural for the twin summits. The south summit (3,544 m) is the easier and more frequented of the two; the north summit reaches 3,529 m. The ridge continues north to the Aiguille du Pissoir and south to the Aiguille Purtscheller.

The voie normale, graded F, climbs from the col supérieur du Tour and can be reached from the Albert Premier Hut (2,707 m) above the village of Le Tour on the French side, or from the Trient Hut (3,170 m) in Switzerland. The south summit (3,544 m) is the easier and more frequented of the two.

The south summit, the higher and more frequented one at 3,544 m, was first reached on 17 August 1864 by Charles Gilbert Heathcote and guide Moritz Andermatten via the upper Tour col. The north summit (3,529 m) followed in August 1875 by Georges and Edouard Beraneck with Émile Javelle. The rock is protogine, a green-tinted granite.