Mount Wilbur is a high peak of the Fairweather Range, the southernmost part of the Saint Elias Mountains.

It lies approximately 14 miles (22 km) southeast of Mount Fairweather and 8 miles (13 km) northwest of Mount Crillon.

It is included in Glacier Bay National Park.

The peak is the higher of a pair of peaks, Mounts Wilbur and Orville, named after the Wright Brothers.

Though not a particularly high peak in absolute terms, Mount Wilbur does stand quite high above local terrain, due to its proximity to the ocean: the summit is only 7.5 miles from tidewater at the head of Lituya Bay to the southwest.