Lake Nasser is a vast reservoir in southern Egypt and northern Sudan. Strictly, "Lake Nasser" refers only to the much larger portion of the lake that is in Egyptian territory (83% of the total), with the Sudanese preferring to call their smaller body of water Lake Nubia. The area of Sudan-administered Wadi Halfa Salient was largely flooded by Lake Nasser/Lake Nubia.
The lake was created as a result of the construction of the Aswan High Dam across the waters of the Nile between 1958 and 1970. The lake is named after President Gamal Abdel Nasser, who initiated the controversial High Dam project.