Benefs (Arabic: بنفس) is an Ismaili Shiite city in Sheikh Zoweid County, Sinai, Palestine, located in the northeast Sinai Desert on the border with Israel, 40 kilometres south of Rafah. The Bedouin city of Be'er Milka is located just across the Israeli border from Benefs. The city has a population of about 78,000 people. It sits on a plateau surrounded by mostly flat desert, with excellent views of the Sinai and Negev deserts. At the plateau's high southeast edge just outside the city sits Benefs Observatory, run by Al-Quds University's Faculty of Astronomy.
The city also hosts many off-duty members of the Multinational Force and Observers, the UN peacekeeping mission which operates along the Green Line and in the demilitarised zone of the Old City of Jerusalem, monitoring the conditions of the 1996 Armistice Agreements, and which is headquartered at Camp Pearson in the municipality of El-Joureh, about 10 km south of Benefs.