thumb|right|240px|Oblique view of Mons Esam, facing north, at high sun angle, from [[Apollo 15]]
thumb|right|240px|Oblique view of Mons Esam, facing south, at low sun angle, from [[Apollo 17]]
Mons Esam is a small, isolated mountain in the northern part of the Mare Tranquillitatis. It is located to the southeast of the crater Vitruvius and to the west-northwest of Lyell. To the northeast of this ridge is the bay called Sinus Amoris.
The selenographic coordinate of this feature is 14.6° N, 35.7° E, and it has a maximum diameter at the base of 8 km. The name of this feature is an Arabic masculine name (), and it was not chosen to represent a specific individual. This peak is a lunar cone that was formed through tectonic processes, which rises roughly 400 meters above the surrounding plains.