Deutsche Evangelische Oberschule (DEO; Arabic: المدرسة الألمانیة الإنجیلیة الثانویة بالقاهرة) is a German school in Dokki, Giza, Egypt, in the Cairo metropolitan area.

The school was built along with a rectory in the spring of 1873 on land given to the Prussian consul von Theremin by the Khedive Ismail.

There were students of different nationalities with 28 Turks, 19 Egyptians, ten Italians, five Germans, five Swiss, five French, four Syrians, three English, three Scots, three Levantines and one each Austrian, Greek, Persian and Armenian.

On 1 October 1956, an Islam course was added to the school's curriculum which was required by the Egyptian government as of 26 June 1956.

In 2001, the school added a new course called "koeducative" religion for Muslim and Christian students.