The Cairo Trilogy is a trilogy of novels set in Cairo, Egypt. It was written by Egyptian novelist and Nobel Prize winner Naguib Mahfouz.

The three novels are:

• Palace Walk (original Arabic title: "Bayn al-Qasrayn", 1956)
• Palace of Desire ("Qasr al-Chawq", 1957)
• Sugar Street ("Al-Sukkariyya", 1957)

The books follow the life of the Cairene patriarch al-Sayyid Ahmad Abd al-Jawad and his family across three generations, from World War I to the overthrow of King Farouk in 1952.