Upper Egypt (Arabic: صعيد مصر Saʿīd Miṣr, shortened to الصعيد El Ṣeʿīd; pronounced [esˤːe.ˈʕiːd], Coptic: ⲙⲁⲣⲏⲥ) is the strip of land on both sides of the Nile that extends between Nubia and (northwards) to Lower Egypt.
Upper Egypt is between the Cataracts of the Nile above modern-day Aswan, downriver (northwards) to the area between Dahshur and El-Ayait, which is south of modern-day Cairo. The northern (downriver) part of Upper Egypt, between Sohag and El-Ayait, is also known as Middle Egypt.
In Arabic, inhabitants of Upper Egypt are known as Sa'idis and they generally speak Sa'idi Arabic.
In ancient Egypt, Upper Egypt was known as tꜣ šmꜣw, literally "the Land of Reeds" or "the Sedgeland" It was divided into twenty-two districts called nomes. The first nome was roughly where modern-day Aswan is and the twenty-second was at modern Atfih just to the south of Cairo.