| Grand Nomenon | |
| Elevation M: | 3488 |
| Elevation Ref: | [1] |
| Prominence M: | 396 |
| Listing: | Alpine mountains above 3000 m |
| Map: | Alps |
| Location: | Aosta Valley, Italy |
| Range: | Graian Alps |
| Coordinates: | 45.612°N 7.236°W |
| First Ascent: | 1877 |
Grand Nomenon (3,488m) is a mountain of the Graian Alps in Aosta Valley, Italy.
Despite being a fine pyramidal peak in its own right, Grand Nomenon lives somewhat in the shadow of its giant southern neighbour Grivola. The summit however provides a fantastic panorama and climbs usually start from the Cogne Valley to the north.[2]