Pyramid of Senusret I, Twelfth Dynasty pyramid in el-Lisht, Giza Governorate, Egypt

The Pyramid of Senusret I is a limestone pyramid in Lisht, in the Giza Governorate of Egypt. It rises to about 61 meters (200 feet) tall, with eight internal walls radiating outward from the center and filled with stone fragments to form the structural core.

Senusret I of the 12th Dynasty built this pyramid at el-Lisht between his 10th and 25th regnal years, roughly 1909–1894 BCE, about 1.6 km south of his father Amenemhat I's pyramid. Its mortuary temple follows Old Kingdom models, especially those of the 5th and 6th Dynasties, and Senusret I was the last Egyptian ruler to add a cult pyramid. The burial chamber, never cleared, now lies flooded by groundwater.

The pyramid had three names: the pyramid itself was Senusret Peter Tawi ("Senusret beholds the two lands"), the mortuary temple and cult installations were Chenem-isut-Cheperkare, and the pyramid town was Cha-Senusret. The mortuary temple followed Old Kingdom models, especially those of Sahure, Teti and Pepi I, but reduced the magazine rooms and used Osiris statues.

The interior of the pyramid is closed to visitors because rising water levels make the underground chambers unsafe to enter. Walking around the exterior and through the surrounding temple area gives a good sense of the overall site.

Nine small pyramids for queens and princesses stood inside the enclosure, not ten. Most are so ruined that the names of their owners are lost; only the pyramid of the wife Neferu and that of the daughter Itakayt I can be identified with certainty. Senusret I was the last Egyptian king to build a cult pyramid.