Aiguille de Blaitière, Mountain summit in Mont Blanc massif, France.

Aiguille de Blaitière is a 3,522 m summit in the Aiguilles de Chamonix ridge of the Mont-Blanc massif, above the Glacier de Blaitière southeast of Chamonix. It has three peaks: the central summit at 3,522 m, the north peak (Pte. de Chamonix) at 3,507 m and a south summit of about 3,521 m. Its faces are dark rock and snow, cut by the Spencercouloir and the steep west wall.

The summit was first reached in 1874 when climbers Christian and Johann Lauener and Edward Robson Whitwell ascended the central point. Since then it has become a classic destination for mountaineering expeditions in the region.

The summit attracts climbers from around the world seeking to test their skills on one of the Alps' most renowned climbing grounds. The steep granite faces define the place and make it a destination for experienced mountaineers.

Most routes start from Chamonix, with the Aiguille du Midi cable car offering a popular way to reach a higher starting point. It is important to bring proper footwear and secure climbing gear, as the paths are steep and rocky.

Two rockfalls erased new routes on the west face: one struck on 10 September 1947, twenty days after P. Allain and A. Fix opened their line, and another destroyed a route established in 1952 just a year later. Traces of these collapses remain visible, and the affected sections can no longer be climbed.